Imports System
Imports System.Diagnostics
Imports System.Reflection
Imports System.IO
Imports System.Text
Imports CryptoSysPKI
Module TestChile
' $Id: basTestChile $
' $Date: 2009-05-07 17:41 $
' $Author: dai $
' This module uses functions from the CryptoSys (tm) PKI Toolkit available from
' <www.cryptosys.net/pki/>.
' *************************** COPYRIGHT NOTICE ******************************
' This code was originally written by David Ireland and is copyright
' (C) 2008-10 DI Management Services Pty Ltd <www.di-mgt.com.au>.
' Provided "as is". No warranties. Use at your own risk. You must make your
' own assessment of its accuracy and suitability for your own purposes.
' It is not to be altered or distributed, except as part of an application.
' You are free to use it in any application, provided this copyright notice
' is left unchanged.
' ************************ END OF COPYRIGHT NOTICE **************************
' NOTES: Some of these procedures are specific for the Chile SII examples.
' Other procedures are more generic and could be used in more general PKI
' programs, perhaps with minor amendments.
' These are marked $GENERIC-FUNCTION$.
' Ref: F60T33-ejemplo.xml
Public Sub Read_SmallerKeys()
' From manual_certificacion.pdf, 2003-11-26, p25
Dim strKeyPem As String
Dim nRet As Integer
Dim strPrivateKey As String
Dim strPublicKey As String
Dim strXmlKey As String
Dim strSig64 As String
Dim abData() As Byte
Dim nDataLen As Integer
Dim nKeyLen As Integer
Dim abDigest() As Byte
' CAUTION: Your real Private Key should be kept SECRET and should never be hard-coded in code like, er, this...
' Put PEM data into a string
' (Note two critical vbCrLF's added before and after base64 data)
strKeyPem = "-----BEGIN RSA PRIVATE KEY-----" & vbCrLf & _
"MIIBOwIBAAJBANGuDuim8fEI9yuIlkj+MOyp3mWHifoP6a4oWLSBKJSrd3MpEsZd" & _
"czvL0l7t/e0IU5rF+0gRLnU1Mfvtsw1wYWcCAQMCQQCLyV9FxKFLW09yWw7bVCCd" & _
"xpRDr7FRX/EexZB4VhsNxm/vtJfDZyYle0Lfy42LlcsXxPm1w6Q6NnjuW+AeBy67" & _
"AiEA7iMi5q5xjswqq+49RP55o//jqdZL/pC9rdnUKxsNRMMCIQDhaHdIctErN2hC" & _
"IP9knS3+9zra4R+5jSXOvI+3xVhWjQIhAJ7CF0R0S7SIHHKe04NUURf/7RvkMqm1" & _
"08k74sdnXi3XAiEAlkWk2vc2HM+a1sCqQxNz/098ketqe7NuidMKeoOQObMCIQCk" & _
"FAMS9IcPcMjk7zI2r/4EEW63PSXyN7MFAX7TYe25mw==" & vbCrLf & _
"-----END RSA PRIVATE KEY-----"
' Read the PEM private key data into an internal key string we can use later on...
' -- this example key is stored in a PKCS#8 PrivateKeyInfo without a password :-(
strPrivateKey = Rsa.ReadPrivateKeyInfo(strKeyPem).ToString()
' CAUTION: the above trick to read into a string is a big security risk
' -- the point of using a StringBuilder is that it can be wiped later
Console.WriteLine("Private key is " & Rsa.KeyBits(strPrivateKey) & " bits")
' Now we compare this private key with the published public key in the XML file...
' Form XML string of public key in proper XMLSIG format using <RSAPK> element from XML file
' <RSAPK><M>0a4O6Kbx8Qj3K4iWSP4w7KneZYeJ+g/prihYtIEolKt3cykSxl1zO8vSXu397QhTmsX7SBEudTUx++2zDXBhZw==</M><E>Aw==</E></RSAPK>
' NOTE: We have changed the element names to the required XMLSIG format:
' <RSAPK> --> <RSAKeyValue>
' <M> --> <Modulus>
' <E> --> <Exponent>
strXmlKey = "<RSAKeyValue>" & _
"<Modulus>0a4O6Kbx8Qj3K4iWSP4w7KneZYeJ+g/prihYtIEolKt3cykSxl1zO8vSXu397QhTmsX7SBEudTUx++2zDXBhZw==</Modulus>" & _
"<Exponent>Aw==</Exponent></RSAKeyValue>"
' Convert XML form to our internal format
strPublicKey = Rsa.FromXMLString(strXmlKey, False)
Console.WriteLine("Public key is " & Rsa.KeyBits(strPublicKey) & " bits")
' Check that key pairs match...
nRet = Rsa.KeyMatch(strPrivateKey, strPublicKey)
Console.WriteLine("RSA_KeyMatch returns " & nRet & " (expecting 0)")
' Then use the PUBLIC key to extract the message digest from the signature value...
' Extract digest from FRMT
' <FRMT algoritmo="SHA1withRSA">GbmDcS9e/jVC2LsLIe1iRV12Bf6lxsILtbQiCkh6mbjckFCJ7fj/kakFTS06Jo8i
' S4HXvJj3oYZuey53Krniew==</FRMT>
strSig64 = "GbmDcS9e/jVC2LsLIe1iRV12Bf6lxsILtbQiCkh6mbjckFCJ7fj/kakFTS06Jo8iS4HXvJj3oYZuey53Krniew=="
' Convert signatureValue to byte format
abData = System.Convert.FromBase64String(strSig64)
Console.WriteLine("SIGNATURE=" & Cnv.ToHex(abData))
nDataLen = abData.Length
Console.WriteLine("Signature is " & nDataLen & " bytes long")
' Check the length
nKeyLen = Rsa.KeyBytes(strPublicKey)
Console.WriteLine("Key is " & nKeyLen & " bytes long")
If nKeyLen <> nDataLen Then
Console.WriteLine("ERROR: Key is the wrong length!")
Exit Sub
End If
' Decrypt the signature
abData = Rsa.RawPublic(abData, strPublicKey)
Console.WriteLine("RSA_RawPublic returns " & nRet & " (expecting 0)")
If nRet <> 0 Then
Console.WriteLine("ERROR: " & General.ErrorLookup(nRet))
Exit Sub
End If
Console.WriteLine("EMSA BLOCK=" & Cnv.ToHex(abData))
' Extract digest from block
abDigest = Rsa.DecodeDigestForSignature(abData)
' Display digest bytes as hex and base64
Console.WriteLine("DIGEST=" & Cnv.ToHex(abDigest))
Console.WriteLine("base64=" & System.Convert.ToBase64String(abDigest))
End Sub
Public Sub MakeFRMTdigest()
' This should give the same digest value we obtained above.
Dim strData As String
Dim strDigest As String
' Put <DD> data into a single string with no spaces between elements (and fix double-quotes for VB when hard-coded here!)
strData = "<DD><RE>97975000-5</RE><TD>33</TD><F>60</F><FE>2003-10-13</FE><RR>77777777-7</RR><RSR>EMPRESA LTDA</RSR><MNT>119000</MNT><IT1>Parlantes Multimedia 180W.</IT1><CAF version=""1.0""><DA><RE>97975000-5</RE><RS>RUT DE PRUEBA</RS><TD>33</TD><RNG><D>1</D><H>200</H></RNG><FA>2003-09-04</FA><RSAPK><M>0a4O6Kbx8Qj3K4iWSP4w7KneZYeJ+g/prihYtIEolKt3cykSxl1zO8vSXu397QhTmsX7SBEudTUx++2zDXBhZw==</M><E>Aw==</E></RSAPK><IDK>100</IDK></DA><FRMA algoritmo=""SHA1withRSA"">g1AQX0sy8NJugX52k2hTJEZAE9Cuul6pqYBdFxj1N17umW7zG/hAavCALKByHzdYAfZ3LhGTXCai5zNxOo4lDQ==</FRMA></CAF><TSTED>2003-10-13T09:33:20</TSTED></DD>"
' Create an SHA-1 digest value in hex format
strDigest = Hash.HexFromString(strData, HashAlgorithm.Sha1)
Console.WriteLine("SHA1(DD)=" & strDigest)
' Display in base64
Console.WriteLine("SHA1(DD)=" & System.Convert.ToBase64String(Cnv.FromHex(strDigest)))
End Sub
Public Sub SignDDtoMakeFRMTsig()
' Use the RSA private key to sign the <DD> data.
' INPUT: RSA private key in PEM format
' Data-to-be signed
' OUTPUT: SignatureValue in base64 form
Dim strKeyPem As String
Dim strData As String
Dim strPrivateKey As String
Dim nKeyBytes As Integer
Dim abBlock() As Byte
Dim abData() As Byte
Dim nDataLen As Integer
Dim strSigVal64 As String
' Input data:
strData = "<DD><RE>97975000-5</RE><TD>33</TD><F>60</F><FE>2003-10-13</FE><RR>77777777-7</RR><RSR>EMPRESA LTDA</RSR><MNT>119000</MNT><IT1>Parlantes Multimedia 180W.</IT1><CAF version=""1.0""><DA><RE>97975000-5</RE><RS>RUT DE PRUEBA</RS><TD>33</TD><RNG><D>1</D><H>200</H></RNG><FA>2003-09-04</FA><RSAPK><M>0a4O6Kbx8Qj3K4iWSP4w7KneZYeJ+g/prihYtIEolKt3cykSxl1zO8vSXu397QhTmsX7SBEudTUx++2zDXBhZw==</M><E>Aw==</E></RSAPK><IDK>100</IDK></DA><FRMA algoritmo=""SHA1withRSA"">g1AQX0sy8NJugX52k2hTJEZAE9Cuul6pqYBdFxj1N17umW7zG/hAavCALKByHzdYAfZ3LhGTXCai5zNxOo4lDQ==</FRMA></CAF><TSTED>2003-10-13T09:33:20</TSTED></DD>"
strKeyPem = "-----BEGIN RSA PRIVATE KEY-----" & vbCrLf & _
"MIIBOwIBAAJBANGuDuim8fEI9yuIlkj+MOyp3mWHifoP6a4oWLSBKJSrd3MpEsZd" & _
"czvL0l7t/e0IU5rF+0gRLnU1Mfvtsw1wYWcCAQMCQQCLyV9FxKFLW09yWw7bVCCd" & _
"xpRDr7FRX/EexZB4VhsNxm/vtJfDZyYle0Lfy42LlcsXxPm1w6Q6NnjuW+AeBy67" & _
"AiEA7iMi5q5xjswqq+49RP55o//jqdZL/pC9rdnUKxsNRMMCIQDhaHdIctErN2hC" & _
"IP9knS3+9zra4R+5jSXOvI+3xVhWjQIhAJ7CF0R0S7SIHHKe04NUURf/7RvkMqm1" & _
"08k74sdnXi3XAiEAlkWk2vc2HM+a1sCqQxNz/098ketqe7NuidMKeoOQObMCIQCk" & _
"FAMS9IcPcMjk7zI2r/4EEW63PSXyN7MFAX7TYe25mw==" & vbCrLf & _
"-----END RSA PRIVATE KEY-----"
' Read the PEM private key data into an internal key string
strPrivateKey = Rsa.ReadPrivateKeyInfo(strKeyPem).ToString()
' CAUTION: the above trick to read into a string is a big security risk
' -- the point of using a StringBuilder is that it can be wiped later
Console.WriteLine("Private key is " & Rsa.KeyBits(strPrivateKey) & " bits long")
' Convert the input data string into a byte array
abData = System.Text.Encoding.Default.GetBytes(strData)
Console.WriteLine("Data=(0x)" & Cnv.ToHex(abData))
nDataLen = UBound(abData) + 1
Console.WriteLine("Input data is " & nDataLen & " bytes long")
' Encode into a block the exact same length as the RSA key...
' Get the length of the key in bytes -- we need an output block exactly this length
nKeyBytes = Rsa.KeyBytes(strPrivateKey)
Console.WriteLine("Private key is " & nKeyBytes & " bytes long")
' Encode the data -- this computes the message digest and then encodes into an EMSA block in one step
abBlock = Rsa.EncodeMsgForSignature(nKeyBytes, abData, HashAlgorithm.Sha1)
If abBlock.Length = 0 Then
Console.WriteLine("ERROR: RSA_EncodeMsg failed. Error: " & General.LastError())
Exit Sub
End If
Console.WriteLine("EMSA BLOCK=" & Cnv.ToHex(abBlock))
' Sign, i.e. encrypt, the encoded block with the RSA private key
abBlock = Rsa.RawPrivate(abBlock, strPrivateKey)
If abBlock.Length = 0 Then
Console.WriteLine("ERROR: RSA_RawPrivate failed. Error: " & General.LastError())
Exit Sub
End If
Console.WriteLine("SIGNATURE= " & Cnv.ToHex(abBlock))
' Convert byte array to base64
strSigVal64 = System.Convert.ToBase64String(abBlock)
Console.WriteLine("SignatureValue=" & strSigVal64)
End Sub
Public Function XmlHexFromInternalKey(ByVal strKey As String) As String
' $GENERIC-FUNCTION$
' INPUT: Public or private RSA key in internal format
' OUTPUT: String containing RSAKeyValue in XML format
Dim strXmlKey As String
Dim nOptions As Rsa.XmlOptions
nOptions = Rsa.XmlOptions.HexBinaryFormat or Rsa.XmlOptions.ExcludePrivateParams or Rsa.XmlOptions.ForceRSAKeyValue
strXmlKey = Rsa.ToXMLString(strKey, nOptions)
If strXmlKey.Length > 0 Then
XmlHexFromInternalKey = strXmlKey
Else
XmlHexFromInternalKey = "**Failed to create public key in XML"
End If
End Function
Public Function IsCertAndKeyValueMatched(ByVal strCert64 As String, ByVal strXmlKey As String) As Boolean
' $GENERIC-FUNCTION$
' Compare the public key values in <RSAKeyValue> and <X509Certificate> values
' INPUT: RSAKeyValue in base64 string INCLUDING <RSAKeyValue> tags;
' X509Certificate in base64 string EXCLUDING <X509Certificate> tags
' OUTPUT: True if public key matches; otherwise False.
' REMARKS: The X509Certificate contains the public key value plus other info.
Dim strPublicKey As String
Dim strQuery As String
Dim strOutput As String
Dim nHashCode1 As Integer
Dim nHashCode2 As Integer
' Query the certificate for details...
strQuery = "issuerName"
strOutput = X509.QueryCert(strCert64, strQuery)
If strOutput.Length = 0 Then
Console.WriteLine("ERROR: Error reading certificate: " & General.LastError)
Exit Function ' ERROR
End If
Console.WriteLine(strQuery & "=" & strOutput)
strQuery = "serialNumber"
strOutput = X509.QueryCert(strCert64, strQuery)
If strOutput.Length = 0 Then
Console.WriteLine("ERROR: Error reading certificate: " & General.LastError)
Exit Function ' ERROR
End If
Console.WriteLine(strQuery & "=" & strOutput)
strQuery = "subjectName"
strOutput = X509.QueryCert(strCert64, strQuery)
If strOutput.Length = 0 Then
Console.WriteLine("ERROR: Error reading certificate: " & General.LastError)
Exit Function ' ERROR
End If
Console.WriteLine(strQuery & "=" & strOutput)
strQuery = "notBefore"
strOutput = X509.QueryCert(strCert64, strQuery)
If strOutput.Length = 0 Then
Console.WriteLine("ERROR: Error reading certificate: " & General.LastError)
Exit Function ' ERROR
End If
Console.WriteLine(strQuery & "=" & strOutput)
strQuery = "signatureAlgorithm"
strOutput = X509.QueryCert(strCert64, strQuery)
If strOutput.Length = 0 Then
Console.WriteLine("ERROR: Error reading certificate: " & General.LastError)
Exit Function ' ERROR
End If
Console.WriteLine(strQuery & "=" & strOutput)
' Extract public key from X.509 certificate
strPublicKey = Rsa.GetPublicKeyFromCert(strCert64).ToString()
If strPublicKey.Length = 0 Then
Console.WriteLine("ERROR: Error reading certificate key: " & General.LastError)
Exit Function ' ERROR
End If
Console.WriteLine("Public key extracted from <X509Certificate>:")
Console.WriteLine("Public key is " & Rsa.KeyBits(strPublicKey) & " bits")
nHashCode1 = Rsa.KeyHashCode(strPublicKey)
Console.WriteLine("Public key hashcode = {0,8:X}", nHashCode1)
' While we're here, display the public key in XML format
Console.WriteLine(XmlHexFromInternalKey(strPublicKey))
' Convert XML form to our internal format (this requires the <RSAKeyvalue> tags)
strPublicKey = Rsa.FromXMLString(strXmlKey, false)
If strPublicKey.Length = 0 Then
Console.WriteLine("ERROR: Unable to read XML key string")
Exit Function
End If
Console.WriteLine("Public key given in <RSAKeyValue>:")
Console.WriteLine("Public key is " & Rsa.KeyBits(strPublicKey) & " bits")
nHashCode2 = Rsa.KeyHashCode(strPublicKey)
Console.WriteLine("Public key hashcode = {0,8:X}", nHashCode2)
Console.WriteLine(XmlHexFromInternalKey(strPublicKey))
If nHashCode1 = nHashCode2 Then
IsCertAndKeyValueMatched = True
Console.WriteLine("OK, public keys match.")
Else
IsCertAndKeyValueMatched = False
Console.WriteLine("ERROR: public keys do not match.")
End If
End Function
Public Sub CheckExampleCertAndRSAKey()
' Ref: F60T33-ejemplo.xml, 2003-10-13
' THIS TEST FAILS BECAUSE THE RSAKeyValue IS WRONG
' <RSAKeyValue>
' <Modulus>
' tNEknkb1kHiD1OOAWlLKkcH/UP5UGa6V6MYso++JB+vYMg2OXFROAF7G8BNFFPQx
' iuS/7y1azZljN2xq+bW3bAou1bW2ij7fxSXWTJYFZMAyndbLyGHM1e3nVmwpgEpx
' BHhZzPvwLb55st1wceuKjs2Ontb13J33sUb7bbJMWh0=
' </Modulus>
' <Exponent>
' AQAB
' </Exponent>
' </RSAKeyValue>
' <X509Certificate>MIIEgjCCA+ugAwIBAgIEAQAApzANBgkqhkiG9w0BAQUFADCBtTELMAkGA1UEBhMC
' Q0wxHTAbBgNVBAgUFFJlZ2lvbiBNZXRyb3BvbGl0YW5hMREwDwYDVQQHFAhTYW50
' aWFnbzEUMBIGA1UEChQLRS1DRVJUQ0hJTEUxIDAeBgNVBAsUF0F1dG9yaWRhZCBD
' ZXJ0aWZpY2Fkb3JhMRcwFQYDVQQDFA5FLUNFUlRDSElMRSBDQTEjMCEGCSqGSIb3
' DQEJARYUZW1haWxAZS1jZXJ0Y2hpbGUuY2wwHhcNMDMxMDAxMTg1ODE1WhcNMDQw
' OTMwMDAwMDAwWjCBuDELMAkGA1UEBhMCQ0wxFjAUBgNVBAgUDU1ldHJvcG9saXRh
' bmExETAPBgNVBAcUCFNhbnRpYWdvMScwJQYDVQQKFB5TZXJ2aWNpbyBkZSBJbXB1
' ZXN0b3MgSW50ZXJub3MxDzANBgNVBAsUBlBpc28gNDEjMCEGA1UEAxQaV2lsaWJh
' bGRvIEdvbnphbGV6IENhYnJlcmExHzAdBgkqhkiG9w0BCQEWEHdnb256YWxlekBz
' aWkuY2wwgZ8wDQYJKoZIhvcNAQEBBQADgY0AMIGJAoGBALxZlVh1xr9sKQIBDF/6
' Va+lsHQSG5AAmCWvtNTIOXN3E9EQCy7pOPHrDg6EusvoHyesZSKJbc0TnIFXZp78
' q7mbdHijzKqvMmyvwbdP7KK8LQfwf84W4v9O8MJeUHlbJGlo5nFACrPAeTtONbHa
' ReyzeMDv2EganNEDJc9c+UNfAgMBAAGjggGYMIIBlDAjBgNVHREEHDAaoBgGCCsG
' AQQBwQEBoAwWCjA3ODgwNDQyLTQwCQYDVR0TBAIwADA8BgNVHR8ENTAzMDGgL6At
' hitodHRwOi8vY3JsLmUtY2VydGNoaWxlLmNsL2UtY2VydGNoaWxlY2EuY3JsMCMG
' A1UdEgQcMBqgGAYIKwYBBAHBAQKgDBYKOTY5MjgxODAtNTAfBgNVHSMEGDAWgBTg
' KP3S4GBPs0brGsz1CJEHcjodCDCB0AYDVR0gBIHIMIHFMIHCBggrBgEEAcNSBTCB
' tTAvBggrBgEFBQcCARYjaHR0cDovL3d3dy5lLWNlcnRjaGlsZS5jbC8yMDAwL0NQ
' Uy8wgYEGCCsGAQUFBwICMHUac0VsIHRpdHVsYXIgaGEgc2lkbyB2YWxpZG8gZW4g
' Zm9ybWEgcHJlc2VuY2lhbCwgcXVlZGFuZG8gZWwgQ2VydGlmaWNhZG8gcGFyYSB1
' c28gdHJpYnV0YXJpbywgcGFnb3MsIGNvbWVyY2lvIHkgb3Ryb3MwCwYDVR0PBAQD
' AgTwMA0GCSqGSIb3DQEBBQUAA4GBABMfCyJF0mNXcov8iEWvjGFyyPTsXwvsYbbk
' OJ41wjaGOFMCInb4WY0ngM8BsDV22bGMs8oLyX7rVy16bGA8Z7WDUtYhoOM7mqXw
' /Hrpqjh3JgAf8zqdzBdH/q6mAbdvq/yb04JHKWPC7fMFuBoeyVWAnhmuMZfReWQi
' MUEHGGIW</X509Certificate>
Dim strCert64 As String
Dim strXmlKey As String
strCert64 = "MIIEgjCCA+ugAwIBAgIEAQAApzANBgkqhkiG9w0BAQUFADCBtTELMAkGA1UEBhMCQ0wxHTAbBgNVBAgUFFJlZ2lvbiBNZXRyb3BvbGl0YW5hMREwDwYDVQQHFAhTYW50aWFnbzEUMBIGA1UEChQLRS1DRVJUQ0hJTEUxIDAeBgNVBAsUF0F1dG9yaWRhZCBDZXJ0aWZpY2Fkb3JhMRcwFQYDVQQDFA5FLUNFUlRDSElMRSBD" & _
"QTEjMCEGCSqGSIb3DQEJARYUZW1haWxAZS1jZXJ0Y2hpbGUuY2wwHhcNMDMxMDAxMTg1ODE1WhcNMDQwOTMwMDAwMDAwWjCBuDELMAkGA1UEBhMCQ0wxFjAUBgNVBAgUDU1ldHJvcG9saXRhbmExETAPBgNVBAcUCFNhbnRpYWdvMScwJQYDVQQKFB5TZXJ2aWNpbyBkZSBJbXB1ZXN0b3MgSW50ZXJub3MxDzANBgNVBAsU" & _
"BlBpc28gNDEjMCEGA1UEAxQaV2lsaWJhbGRvIEdvbnphbGV6IENhYnJlcmExHzAdBgkqhkiG9w0BCQEWEHdnb256YWxlekBzaWkuY2wwgZ8wDQYJKoZIhvcNAQEBBQADgY0AMIGJAoGBALxZlVh1xr9sKQIBDF/6Va+lsHQSG5AAmCWvtNTIOXN3E9EQCy7pOPHrDg6EusvoHyesZSKJbc0TnIFXZp78q7mbdHijzKqvMmyv" & _
"wbdP7KK8LQfwf84W4v9O8MJeUHlbJGlo5nFACrPAeTtONbHaReyzeMDv2EganNEDJc9c+UNfAgMBAAGjggGYMIIBlDAjBgNVHREEHDAaoBgGCCsGAQQBwQEBoAwWCjA3ODgwNDQyLTQwCQYDVR0TBAIwADA8BgNVHR8ENTAzMDGgL6AthitodHRwOi8vY3JsLmUtY2VydGNoaWxlLmNsL2UtY2VydGNoaWxlY2EuY3JsMCMG" & _
"A1UdEgQcMBqgGAYIKwYBBAHBAQKgDBYKOTY5MjgxODAtNTAfBgNVHSMEGDAWgBTgKP3S4GBPs0brGsz1CJEHcjodCDCB0AYDVR0gBIHIMIHFMIHCBggrBgEEAcNSBTCBtTAvBggrBgEFBQcCARYjaHR0cDovL3d3dy5lLWNlcnRjaGlsZS5jbC8yMDAwL0NQUy8wgYEGCCsGAQUFBwICMHUac0VsIHRpdHVsYXIgaGEgc2lk" & _
"byB2YWxpZG8gZW4gZm9ybWEgcHJlc2VuY2lhbCwgcXVlZGFuZG8gZWwgQ2VydGlmaWNhZG8gcGFyYSB1c28gdHJpYnV0YXJpbywgcGFnb3MsIGNvbWVyY2lvIHkgb3Ryb3MwCwYDVR0PBAQDAgTwMA0GCSqGSIb3DQEBBQUAA4GBABMfCyJF0mNXcov8iEWvjGFyyPTsXwvsYbbkOJ41wjaGOFMCInb4WY0ngM8BsDV22bGM" & _
"s8oLyX7rVy16bGA8Z7WDUtYhoOM7mqXw/Hrpqjh3JgAf8zqdzBdH/q6mAbdvq/yb04JHKWPC7fMFuBoeyVWAnhmuMZfReWQiMUEHGGIW"
strXmlKey = "<RSAKeyValue><Modulus>" & _
"tNEknkb1kHiD1OOAWlLKkcH/UP5UGa6V6MYso++JB+vYMg2OXFROAF7G8BNFFPQx" & _
"iuS/7y1azZljN2xq+bW3bAou1bW2ij7fxSXWTJYFZMAyndbLyGHM1e3nVmwpgEpx" & _
"BHhZzPvwLb55st1wceuKjs2Ontb13J33sUb7bbJMWh0=</Modulus>" & _
"<Exponent>AQAB</Exponent></RSAKeyValue>"
Console.WriteLine(IsCertAndKeyValueMatched(strCert64, strXmlKey))
End Sub
Public Sub CheckManualCertAndRSAKey()
' Ref: manual_certificacion.pdf, 2003-11-26
' THIS TEST FAILS BECAUSE THE RSAKeyValue IS WRONG
' <RSAKeyValue>
' <Modulus>
' tNEknkb1kHiD1OOAWlLKkcH/UP5UGa6V6MYso++JB+vYMg2OXFROAF7G8BNFFPQx
' iuS/7y1azZljN2xq+bW3bAou1bW2ij7fxSXWTJYFZMAyndbLyGHM1e3nVmwpgEpx
' BHhZzPvwLb55st1wceuKjs2Ontb13J33sUb7bbJMWh0=
' </Modulus>
' <Exponent>
' AQAB
' </Exponent>
' </RSAKeyValue>
' <X509Certificate>MIIEPjCCA6mgAwIBAgIDAgGKMAsGCSqGSIb3DQEBBDCBsTEdMBsGA1UECBQUUmVn
' aW9uIE1ldHJvcG9saXRhbmExETAPBgNVBAcUCFNhbnRpYWdvMSIwIAYDVQQDFBlF
' LUNlcnRjaGlsZSBDQSBJbnRlcm1lZGlhMTYwNAYDVQQLFC1FbXByZXNhIE5hY2lv
' bmFsIGRlIENlcnRpZmljYWNpb24gRWxlY3Ryb25pY2ExFDASBgNVBAoUC0UtQ0VS
' VENISUxFMQswCQYDVQQGEwJDTDAeFw0wMjEwMDIxOTExNTlaFw0wMzEwMDIwMDAw
' MDBaMIHXMR0wGwYDVQQIFBRSZWdpb24gTWV0cm9wb2xpdGFuYTEnMCUGA1UECxQe
' U2VydmljaW8gZGUgSW1wdWVzdG9zIEludGVybm9zMScwJQYDVQQKFB5TZXJ2aWNp
' byBkZSBJbXB1ZXN0b3MgSW50ZXJub3MxETAPBgNVBAcUCFNhbnRpYWdvMR8wHQYJ
' KoZIhvcNAQkBFhB3Z29uemFsZXpAc2lpLmNsMSMwIQYDVQQDFBpXaWxpYmFsZG8g
' R29uemFsZXogQ2FicmVyYTELMAkGA1UEBhMCQ0wwXDANBgkqhkiG9w0BAQEFAANL
' ADBIAkEAvNQyaLPd3cQlBr0fQWooAKXSFan/WbaFtD5P7QDzcE1pBIvKY2Uv6uid
' ur/mGVB9IS4Fq/1xRIXy13FFmxLwTQIDAQABo4IBgjCCAX4wIwYDVR0RBBwwGqAY
' BggrBgEEAcNSAaAMFgowNzg4MDQ0Mi00MDwGA1UdHwQ1MDMwMaAvoC2GK2h0dHA6
' Ly9jcmwuZS1jZXJ0Y2hpbGUuY2wvRWNlcnRjaGlsZUNBSS5jcmwwIwYDVR0SBBww
' GqAYBggrBgEEAcEBAqAMFgo5NjkyODE4MC01MIHmBgNVHSAEgd4wgdswgdgGCCsG
' AQQBw1IAMIHLMDYGCCsGAQUFBwIBFipodHRwOi8vd3d3LmUtY2VydGNoaWxlLmNs
' L3BvbGl0aWNhL2Nwcy5odG0wgZAGCCsGAQUFBwICMIGDGoGARWwgdGl0dWxhciBo
' YSBzaWRvIHZhbGlkYWRvIGVuIGZvcm1hIHByZXNlbmNpYWwsIHF1ZWRhbmRvIGhh
' YmlsaXRhZG8gZWwgQ2VydGlmaWNhZG8gcGFyYSB1c28gdHJpYnV0YXJpbywgcGFn
' b3MsIGNvbWVyY2lvIHUgb3Ryb3MwCwYDVR0PBAQDAgTwMAsGCSqGSIb3DQEBBAOB
' gQB2V4cTj7jo1RawmsRQUSnnvJjMCrZstcHY+Ss3IghVPO9eGoYzu5Q63vzt0Pi8
' CS91SBc7xo+LDoljaUyjOzj7zvU7TpWoFndiTQF3aCOtTkV+vjCMWW3sVHes4UCM
' DkF3VYK+rDTAadiaeDArTwsx4eNEpxFuA/TJwcXpLQRCDg==</X509Certificate>
Dim strCert64 As String
Dim strXmlKey As String
strCert64 = "MIIEPjCCA6mgAwIBAgIDAgGKMAsGCSqGSIb3DQEBBDCBsTEdMBsGA1UECBQUUmVnaW9uIE1ldHJvcG9saXRhbmExETAPBgNVBAcUCFNhbnRpYWdvMSIwIAYDVQQDFBlFLUNlcnRjaGlsZSBDQSBJbnRlcm1lZGlhMTYwNAYDVQQLFC1FbXByZXNhIE5hY2lvbmFsIGRlIENlcnRpZmljYWNpb24gRWx" & _
"lY3Ryb25pY2ExFDASBgNVBAoUC0UtQ0VSVENISUxFMQswCQYDVQQGEwJDTDAeFw0wMjEwMDIxOTExNTlaFw0wMzEwMDIwMDAwMDBaMIHXMR0wGwYDVQQIFBRSZWdpb24gTWV0cm9wb2xpdGFuYTEnMCUGA1UECxQeU2VydmljaW8gZGUgSW1wdWVzdG9zIEludGVybm9zMScwJQYDVQQKFB5TZXJ2aWNpbyBkZSBJbXB1ZXN" & _
"0b3MgSW50ZXJub3MxETAPBgNVBAcUCFNhbnRpYWdvMR8wHQYJKoZIhvcNAQkBFhB3Z29uemFsZXpAc2lpLmNsMSMwIQYDVQQDFBpXaWxpYmFsZG8gR29uemFsZXogQ2FicmVyYTELMAkGA1UEBhMCQ0wwXDANBgkqhkiG9w0BAQEFAANLADBIAkEAvNQyaLPd3cQlBr0fQWooAKXSFan/WbaFtD5P7QDzcE1pBIvKY2Uv6ui" & _
"dur/mGVB9IS4Fq/1xRIXy13FFmxLwTQIDAQABo4IBgjCCAX4wIwYDVR0RBBwwGqAYBggrBgEEAcNSAaAMFgowNzg4MDQ0Mi00MDwGA1UdHwQ1MDMwMaAvoC2GK2h0dHA6Ly9jcmwuZS1jZXJ0Y2hpbGUuY2wvRWNlcnRjaGlsZUNBSS5jcmwwIwYDVR0SBBwwGqAYBggrBgEEAcEBAqAMFgo5NjkyODE4MC01MIHmBgNVHSA" & _
"Egd4wgdswgdgGCCsGAQQBw1IAMIHLMDYGCCsGAQUFBwIBFipodHRwOi8vd3d3LmUtY2VydGNoaWxlLmNsL3BvbGl0aWNhL2Nwcy5odG0wgZAGCCsGAQUFBwICMIGDGoGARWwgdGl0dWxhciBoYSBzaWRvIHZhbGlkYWRvIGVuIGZvcm1hIHByZXNlbmNpYWwsIHF1ZWRhbmRvIGhhYmlsaXRhZG8gZWwgQ2VydGlmaWNhZG8" & _
"gcGFyYSB1c28gdHJpYnV0YXJpbywgcGFnb3MsIGNvbWVyY2lvIHUgb3Ryb3MwCwYDVR0PBAQDAgTwMAsGCSqGSIb3DQEBBAOBgQB2V4cTj7jo1RawmsRQUSnnvJjMCrZstcHY+Ss3IghVPO9eGoYzu5Q63vzt0Pi8CS91SBc7xo+LDoljaUyjOzj7zvU7TpWoFndiTQF3aCOtTkV+vjCMWW3sVHes4UCMDkF3VYK+rDTAadi" & _
"aeDArTwsx4eNEpxFuA/TJwcXpLQRCDg=="
strXmlKey = "<RSAKeyValue><Modulus>" & _
"tNEknkb1kHiD1OOAWlLKkcH/UP5UGa6V6MYso++JB+vYMg2OXFROAF7G8BNFFPQx" & _
"iuS/7y1azZljN2xq+bW3bAou1bW2ij7fxSXWTJYFZMAyndbLyGHM1e3nVmwpgEpx" & _
"BHhZzPvwLb55st1wceuKjs2Ontb13J33sUb7bbJMWh0=</Modulus>" & _
"<Exponent>AQAB</Exponent></RSAKeyValue>"
Console.WriteLine(IsCertAndKeyValueMatched(strCert64, strXmlKey))
End Sub
Public Function Hash_String_SHA1(ByVal strMessage As String, Optional ByVal ShowDebug As Boolean = False) As String
' $GENERIC-FUNCTION$
' INPUT: Message as an ANSI string
' OUTPUT: SHA-1 message digest in hex format
Dim abMessage() As Byte
Dim nmLen As Integer
Dim strDigest As String
' Convert ANSI text to bytes
abMessage = System.Text.Encoding.Default.GetBytes(strMessage)
nmLen = abMessage.Length
If ShowDebug Then
Console.WriteLine("M (ansi):" & vbCrLf & "'" & System.Text.Encoding.Default.GetString(abMessage) & "'")
Console.WriteLine("M (hex): " & Cnv.ToHex(abMessage))
Console.WriteLine("Message is " & nmLen & " bytes long")
End If
strDigest = Hash.HexFromBytes(abMessage, HashAlgorithm.Sha1)
If strDigest.Length = 0 Then
Console.WriteLine("FAILED to create message digest")
End If
Hash_String_SHA1 = strDigest
End Function
Public Function Hash_File_SHA1(ByVal strFileName As String) As String
' $GENERIC-FUNCTION$
' INPUT: Full path to file
' OUTPUT: SHA-1 message digest in hex format
Dim strDigest As String
strDigest = Hash.HexFromFile(strFileName, HashAlgorithm.Sha1)
If strDigest.Length = 0 Then
Console.WriteLine("FAILED to create message digest")
End If
Hash_File_SHA1 = strDigest
End Function
Public Sub Test_Make_Hash_of_File()
Console.WriteLine("DIGEST=" & Hash_File_SHA1("data.canon.ok.txt"))
End Sub
Public Function MakeDigestValueOfSignedInfo(ByVal strDigestValue64 As String, ByVal strReference As String, ByVal fIncludeXMLSchema As Boolean, Optional ByVal ShowDebug As Boolean = False) As String
' $GENERIC-FUNCTION$
' INPUT: DigestValue of data in base64 format
' Reference as in <Reference URI="#...">
' Flag to include XMLSchema-instance attribute
' OUTPUT: SHA-1 digest of canonicalized <SignedInfo> element in HEX format
' REMARKS: This is for the specific form with no whitespace before any element
Dim strSignedInfoCanonic As String
Dim strDigest As String
Dim strFirstLine As String
'SPECIFIC FORM (no whitespace before elements):
' <SignedInfo>
' <CanonicalizationMethod Algorithm="http://www.w3.org/TR/2001/REC-xml-c14n-20010315"/>
' <SignatureMethod Algorithm="http://www.w3.org/2000/09/xmldsig#rsa-sha1"/>
' <Reference URI="#...">
' <Transforms>
' <Transform Algorithm="http://www.w3.org/TR/2001/REC-xml-c14n-20010315"/>
' </Transforms>
' <DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1"/>
' <DigestValue>...</DigestValue>
' </Reference>
' </SignedInfo>
' To canonicalize the SignedInfo, do the following:-
' 1. Replace any CR-LF pairs with single LF char
' 2. Add the xmlns attributes to the SignedInfo tag
' 3. Convert the empty 'Method' elements to start-end tag pairs
' 4. Use double-quotes (") around attribute values
' 5. Do NOT change any other whitespace chars outside the tags
' -- assumes all other c14n aspects are dealt with in the hard-coding
' We can hard-code all of the above directly; well, almost...
If fIncludeXMLSchema Then
strFirstLine = "<SignedInfo xmlns=""http://www.w3.org/2000/09/xmldsig#"" xmlns:xsi=""http://www.w3.org/2001/XMLSchema-instance"">"
Else
strFirstLine = "<SignedInfo xmlns=""http://www.w3.org/2000/09/xmldsig#"">"
End If
strSignedInfoCanonic = _
strFirstLine & vbLf & _
"<CanonicalizationMethod Algorithm=""http://www.w3.org/TR/2001/REC-xml-c14n-20010315""></CanonicalizationMethod>" & vbLf & _
"<SignatureMethod Algorithm=""http://www.w3.org/2000/09/xmldsig#rsa-sha1""></SignatureMethod>" & vbLf & _
"<Reference URI=""#" & strReference & """>" & vbLf & _
"<Transforms>" & vbLf & _
"<Transform Algorithm=""http://www.w3.org/TR/2001/REC-xml-c14n-20010315""></Transform>" & vbLf & _
"</Transforms>" & vbLf & _
"<DigestMethod Algorithm=""http://www.w3.org/2000/09/xmldsig#sha1""></DigestMethod>" & vbLf & _
"<DigestValue>" & strDigestValue64 & "</DigestValue>" & vbLf & _
"</Reference>" & vbLf & _
"</SignedInfo>"
If ShowDebug Then
Console.WriteLine(strSignedInfoCanonic)
End If
strDigest = Hash_String_SHA1(strSignedInfoCanonic)
MakeDigestValueOfSignedInfo = strDigest
End Function
Public Sub Test_DigestSignedInfo()
Dim strComputed As String
Dim strCorrect As String
Console.WriteLine()
Console.WriteLine("F60T33 Outer XML-Dsig:")
strCorrect = "98B466FFE6A5E73B85962BC7300841C5F1693D3A"
strComputed = MakeDigestValueOfSignedInfo("4OTWXyRl5fw3htjTyZXQtYEsC3E=", "SetDoc", fIncludeXMLSchema:=True)
Console.WriteLine("COMPUTED=" & strComputed)
Console.WriteLine("CORRECT= " & strCorrect)
Console.WriteLine("F60T33 Inner XML-Dsig:")
strCorrect = "353CABFE369AAD9BEA21F5FA06CB367960FFB7D4"
strComputed = MakeDigestValueOfSignedInfo("hlmQtu/AyjUjTDhM3852wvRCr8w=", "F60T33", fIncludeXMLSchema:=False)
Console.WriteLine("COMPUTED=" & strComputed)
Console.WriteLine("CORRECT= " & strCorrect)
End Sub
Public Function XMLDSIG_VerifySigUsingRSAKeyValue(ByVal strSig64 As String, ByVal strXmlKey As String) As String
' $GENERIC-FUNCTION$
' INPUT: strSig64 = <SignatureValue> in base64 excluding XML tags
' strXmlKey = <RSAKeyValue> in XMLSIG format including XML tags
' OUTPUT: DigestValue in hex format
Dim nRet As Integer
Dim abData() As Byte
Dim nDataLen As Integer
Dim strPublicKey As String
Dim nKeyLen As Integer
Dim abDigest() As Byte
Dim nDigLen As Integer
XMLDSIG_VerifySigUsingRSAKeyValue = ""
Console.WriteLine("SigBase64=" & strSig64)
' Convert XML key form to our internal format
strPublicKey = Rsa.FromXMLString(strXmlKey, false)
If strPublicKey.Length = 0 Then
Console.WriteLine("ERROR: Unable to read XML key string")
Exit Function
End If
Console.WriteLine("Key length is " & Rsa.KeyBits(strPublicKey) & " bits")
' Convert signatureValue to byte format
abData = System.Convert.FromBase64String(strSig64)
Console.WriteLine("SIGNATURE=" & Cnv.ToHex(abData))
nDataLen = UBound(abData) - LBound(abData) + 1
Console.WriteLine("Signature is " & nDataLen & " bytes long")
' Verify the key - this should return 1
nRet = Rsa.CheckKey(strPublicKey)
Console.WriteLine("RSA_CheckKey returns " & nRet & " (expecting 1)")
' Check the length
nKeyLen = Rsa.KeyBytes(strPublicKey)
Console.WriteLine("Key is " & nKeyLen & " bytes long")
If nKeyLen <> nDataLen Then
Console.WriteLine("ERROR: Key is the wrong length!")
Exit Function
End If
' Decrypt the signature
abData = Rsa.RawPublic(abData, strPublicKey)
If abData.Length = 0 Then
Console.WriteLine("ERROR: " & General.LastError())
Exit Function
End If
Console.WriteLine("EMSA BLOCK=" & Cnv.ToHex(abData))
' Extract digest from block
abDigest = Rsa.DecodeDigestForSignature(abData)
nDigLen = abDigest.Length
Console.WriteLine("RSA_DecodeMsg returns " & nDigLen & " (expecting 20)")
If nDigLen <= 0 Then
Console.WriteLine("ERROR: Cannot extract digest")
Exit Function
End If
' Display bytes as hex and base64
Console.WriteLine("digest=" & Cnv.ToHex(abDigest))
Console.WriteLine("base64=" & System.Convert.ToBase64String(abDigest))
Console.WriteLine()
' Return result
XMLDSIG_VerifySigUsingRSAKeyValue = Cnv.ToHex(abDigest)
End Function
Public Function XMLDSIG_VerifySigUsingCert(ByVal strSig64 As String, ByVal strCert64 As String) As String
' $GENERIC-FUNCTION$
' INPUT: strSig64 = <SignatureValue> content in base64 excluding tags
' strCert64 = <X509Certificate> content in base64 excluding tags
' OUTPUT: digestValue in hex format
Dim abData() As Byte
Dim strPublicKey As String
Dim nRet As Integer
Dim nDataLen As Integer
Dim nKeyLen As Integer
Dim abDigest() As Byte
Dim strQuery As String
Dim strOutput As String
Dim strXmlKey As String
XMLDSIG_VerifySigUsingCert = ""
' Query the certificate for details
strQuery = "subjectName"
strOutput = X509.QueryCert(strCert64, strQuery)
If strOutput.Length = 0 Then
Console.WriteLine("ERROR: Error reading certificate: " & General.LastError)
Exit Function ' ERROR
End If
Console.WriteLine(strQuery & "=" & strOutput)
' Extract public key from X.509 certificate in internal string form
strPublicKey = Rsa.GetPublicKeyFromCert(strCert64).ToString()
Console.WriteLine("Chars in internal key = " & strPublicKey.Length)
If strPublicKey.Length = 0 Then
Console.WriteLine("ERROR: Error reading certificate key")
Exit Function ' ERROR
End If
Console.WriteLine("PUBLIC KEY (internal)=" & strPublicKey)
' While we're here, display the public key in XML format
strXmlKey = Rsa.ToXMLString(strPublicKey, 0)
If strXmlKey.Length > 0 Then
Console.WriteLine(strXmlKey)
Else
Console.WriteLine("**Failed to create public key in XML")
End If
' Convert signatureValue to byte format
abData = System.Convert.FromBase64String(strSig64)
Console.WriteLine("SIGNATURE=" & Cnv.ToHex(abData))
nDataLen = abData.Length
Console.WriteLine("Signature is " & nDataLen & " bytes long")
' Verify the key - this should return 1
nRet = Rsa.CheckKey(strPublicKey)
Console.WriteLine("RSA_CheckKey returns " & nRet & " (expecting 1)")
' Check the length
nKeyLen = Rsa.KeyBytes(strPublicKey)
Console.WriteLine("Key is " & nKeyLen & " bytes long")
If nKeyLen <> nDataLen Then
Console.WriteLine("ERROR: Key is the wrong length!")
Exit Function
End If
' Decrypt the signature
abData = Rsa.RawPublic(abData, strPublicKey)
Console.WriteLine("RSA_RawPublic returns " & nRet & " (expecting 0)")
Console.WriteLine("EMSA BLOCK=" & Cnv.ToHex(abData))
' Extract digest from block
abDigest = Rsa.DecodeDigestForSignature(abData)
Console.WriteLine("RSA_DecodeMsg returns " & abDigest.Length & " (expecting 20)")
If abDigest.Length = 0 Then
Console.WriteLine("ERROR: Cannot extract digest")
Exit Function
End If
' Display bytes as hex and base64
Console.WriteLine("digest=" & Cnv.ToHex(abDigest))
Console.WriteLine("base64=" & System.Convert.ToBase64String(abDigest))
' Return digest in hex
XMLDSIG_VerifySigUsingCert = Cnv.ToHex(abDigest)
End Function
Public Sub TestReadFRMA()
Dim strCert64 As String
Dim strSig64 As String
Dim strDigestHex As String
'<FRMA algoritmo="SHA1withRSA">g1AQX0sy8NJugX52k2hTJEZAE9Cuul6pqYBdFxj1N17umW7zG/hAavCALKByHzdYAfZ3LhGTXCai5zNxOo4lDQ==</FRMA>
strSig64 = "g1AQX0sy8NJugX52k2hTJEZAE9Cuul6pqYBdFxj1N17umW7zG/hAavCALKByHzdYAfZ3LhGTXCai5zNxOo4lDQ=="
' [2009-05-07] We have the certificate for the signer of this now...
strCert64 = "-----BEGIN CERTIFICATE-----" & vbCrLf & _
"MIICTzCCAfmgAwIBAwIBZDANBgkqhkiG9w0BAQQFADCBrzELMAkGA1UEBhMCQ0wx" & _
"CzAJBgNVBAgTAkNTMQswCQYDVQQHEwJDczEnMCUGA1UEChMeU2VydmljaW8gZGUg" & _
"SW1wdWVzdG9zIEludGVybm9zMRkwFwYDVQQLExBPZmljaW5hIEludGVybmV0MScw" & _
"JQYDVQQDEx5TZXJ2aWNpbyBkZSBJbXB1ZXN0b3MgSW50ZXJub3MxGTAXBgkqhkiG" & _
"9w0BCQEWCnNpaUBzaWkuY2wwHhcNMDMwNDI5MjAxNDA1WhcNMDQwNDIzMjAxNDA1" & _
"WjCBrzELMAkGA1UEBhMCQ0wxCzAJBgNVBAgTAkNTMQswCQYDVQQHEwJDczEnMCUG" & _
"A1UEChMeU2VydmljaW8gZGUgSW1wdWVzdG9zIEludGVybm9zMRkwFwYDVQQLExBP" & _
"ZmljaW5hIEludGVybmV0MScwJQYDVQQDEx5TZXJ2aWNpbyBkZSBJbXB1ZXN0b3Mg" & _
"SW50ZXJub3MxGTAXBgkqhkiG9w0BCQEWCnNpaUBzaWkuY2wwXDANBgkqhkiG9w0B" & _
"AQEFAANLADBIAkEAyPvwDcshpVAApYVSLF3lKKc+DOFswDqx5ep95LKigRHjUvrv" & _
"jct9UeNJq9SxBdzU9nz54TEVBYyfAVQpG4xxUwIDAQABMA0GCSqGSIb3DQEBBAUA" & _
"A0EADvJX1C7hUFD2Eq9jNZpeJ/YBOZx1SBmAHSeXud6fTw98+AR4X3YDmzO9D4Kd" & _
"hEFi3NK4anpjiPOKbA8fBWyyBA==" & _
"-----END CERTIFICATE-----"
strDigestHex = XMLDSIG_VerifySigUsingCert(strSig64, strCert64)
End Sub
Public Sub MakeFRMAdigest()
' This should give the same digest value we obtained above.
Dim strData As String
Dim strDigest As String
' Put <DA> data into a single string with no spaces between elements
strData = "<DA><RE>97975000-5</RE><RS>RUT DE PRUEBA</RS><TD>33</TD><RNG><D>1</D><H>200</H></RNG><FA>2003-09-04</FA><RSAPK><M>0a4O6Kbx8Qj3K4iWSP4w7KneZYeJ+g/prihYtIEolKt3cykSxl1zO8vSXu397QhTmsX7SBEudTUx++2zDXBhZw==</M><E>Aw==</E></RSAPK><IDK>100</IDK></DA>"
' Create an SHA-1 digest value in hex format
''strDigest = String(PKI_SHA1_CHARS, " ")
strDigest = Hash.HexFromString(strData, HashAlgorithm.Sha1)
Console.WriteLine("SHA1(DA)=" & strDigest)
' Display in base64
Console.WriteLine("SHA1(DA)=" & System.Convert.ToBase64String(Cnv.FromHex(strDigest)))
End Sub
Public Sub TestReadFRMT()
Dim strXmlKey As String
Dim strSig64 As String
' <FRMT algoritmo="SHA1withRSA">GbmDcS9e/jVC2LsLIe1iRV12Bf6lxsILtbQiCkh6mbjckFCJ7fj/kakFTS06Jo8iS4HXvJj3oYZuey53Krniew==</FRMT>
strSig64 = "GbmDcS9e/jVC2LsLIe1iRV12Bf6lxsILtbQiCkh6mbjckFCJ7fj/kakFTS06Jo8iS4HXvJj3oYZuey53Krniew=="
' Form XML string of public key in proper XMLSIG format using <RSAPK> element in XML file
' <RSAPK><M>0a4O6Kbx8Qj3K4iWSP4w7KneZYeJ+g/prihYtIEolKt3cykSxl1zO8vSXu397QhTmsX7SBEudTUx++2zDXBhZw==</M><E>Aw==</E></RSAPK>
strXmlKey = "<RSAKeyValue><Modulus>0a4O6Kbx8Qj3K4iWSP4w7KneZYeJ+g/prihYtIEolKt3cykSxl1zO8vSXu397QhTmsX7SBEudTUx++2zDXBhZw==</Modulus>" & _
"<Exponent>Aw==</Exponent></RSAKeyValue>"
Call XMLDSIG_VerifySigUsingRSAKeyValue(strSig64, strXmlKey)
End Sub
Public Sub TestF60T33OuterXmlSigByCert()
' THIS DOES NOT WORK! Because the X509 Certificate provided does not correspond to the key used to make the signature.
Dim strSig64 As String
Dim strCert64 As String
strCert64 = "MIIEgjCCA+ugAwIBAgIEAQAApzANBgkqhkiG9w0BAQUFADCBtTELMAkGA1UEBhMCQ0wxHTAbBgNVBAgUFFJlZ2lvbiBNZXRyb3BvbGl0YW5hMREwDwYDVQQHFAhTYW50aWFnbzEUMBIGA1UEChQLRS1DRVJUQ0hJTEUxIDAeBgNVBAsUF0F1dG9yaWRhZCBDZXJ0aWZpY2Fkb3JhMRcwFQYDVQQDFA5FLUNFUlRDSElMRSBD" & _
"QTEjMCEGCSqGSIb3DQEJARYUZW1haWxAZS1jZXJ0Y2hpbGUuY2wwHhcNMDMxMDAxMTg1ODE1WhcNMDQwOTMwMDAwMDAwWjCBuDELMAkGA1UEBhMCQ0wxFjAUBgNVBAgUDU1ldHJvcG9saXRhbmExETAPBgNVBAcUCFNhbnRpYWdvMScwJQYDVQQKFB5TZXJ2aWNpbyBkZSBJbXB1ZXN0b3MgSW50ZXJub3MxDzANBgNVBAsU" & _
"BlBpc28gNDEjMCEGA1UEAxQaV2lsaWJhbGRvIEdvbnphbGV6IENhYnJlcmExHzAdBgkqhkiG9w0BCQEWEHdnb256YWxlekBzaWkuY2wwgZ8wDQYJKoZIhvcNAQEBBQADgY0AMIGJAoGBALxZlVh1xr9sKQIBDF/6Va+lsHQSG5AAmCWvtNTIOXN3E9EQCy7pOPHrDg6EusvoHyesZSKJbc0TnIFXZp78q7mbdHijzKqvMmyv" & _
"wbdP7KK8LQfwf84W4v9O8MJeUHlbJGlo5nFACrPAeTtONbHaReyzeMDv2EganNEDJc9c+UNfAgMBAAGjggGYMIIBlDAjBgNVHREEHDAaoBgGCCsGAQQBwQEBoAwWCjA3ODgwNDQyLTQwCQYDVR0TBAIwADA8BgNVHR8ENTAzMDGgL6AthitodHRwOi8vY3JsLmUtY2VydGNoaWxlLmNsL2UtY2VydGNoaWxlY2EuY3JsMCMG" & _
"A1UdEgQcMBqgGAYIKwYBBAHBAQKgDBYKOTY5MjgxODAtNTAfBgNVHSMEGDAWgBTgKP3S4GBPs0brGsz1CJEHcjodCDCB0AYDVR0gBIHIMIHFMIHCBggrBgEEAcNSBTCBtTAvBggrBgEFBQcCARYjaHR0cDovL3d3dy5lLWNlcnRjaGlsZS5jbC8yMDAwL0NQUy8wgYEGCCsGAQUFBwICMHUac0VsIHRpdHVsYXIgaGEgc2lk" & _
"byB2YWxpZG8gZW4gZm9ybWEgcHJlc2VuY2lhbCwgcXVlZGFuZG8gZWwgQ2VydGlmaWNhZG8gcGFyYSB1c28gdHJpYnV0YXJpbywgcGFnb3MsIGNvbWVyY2lvIHkgb3Ryb3MwCwYDVR0PBAQDAgTwMA0GCSqGSIb3DQEBBQUAA4GBABMfCyJF0mNXcov8iEWvjGFyyPTsXwvsYbbkOJ41wjaGOFMCInb4WY0ngM8BsDV22bGM" & _
"s8oLyX7rVy16bGA8Z7WDUtYhoOM7mqXw/Hrpqjh3JgAf8zqdzBdH/q6mAbdvq/yb04JHKWPC7fMFuBoeyVWAnhmuMZfReWQiMUEHGGIW"
strSig64 = "sBnr8Yq14vVAcrN/pKLD/BrqUFczKMW3y1t3JOrdsxhhq6IxvS13SgyMXbIN/T9ciRaFgNabs3pi732XhcpeiSmD1ktzbRctEbSIszYkFJY49k0eB+TVzq3eVaQr4INrymfuOnWj78BZcwKuXvDy4iAcx6/TBbAAkPFwMP9ql2s="
Call XMLDSIG_VerifySigUsingCert(strSig64, strCert64)
End Sub
Public Sub TestF60T33OuterXmlSigByRSA()
' THIS WORKS...
Dim strSig64 As String
Dim strXmlKey As String
strXmlKey = "<RSAKeyValue><Modulus>" & _
"tNEknkb1kHiD1OOAWlLKkcH/UP5UGa6V6MYso++JB+vYMg2OXFROAF7G8BNFFPQx" & _
"iuS/7y1azZljN2xq+bW3bAou1bW2ij7fxSXWTJYFZMAyndbLyGHM1e3nVmwpgEpx" & _
"BHhZzPvwLb55st1wceuKjs2Ontb13J33sUb7bbJMWh0=</Modulus>" & _
"<Exponent>AQAB</Exponent></RSAKeyValue>"
strSig64 = "sBnr8Yq14vVAcrN/pKLD/BrqUFczKMW3y1t3JOrdsxhhq6IxvS13SgyMXbIN/T9ciRaFgNabs3pi732XhcpeiSmD1ktzbRctEbSIszYkFJY49k0eB+TVzq3eVaQr4INrymfuOnWj78BZcwKuXvDy4iAcx6/TBbAAkPFwMP9ql2s="
Call XMLDSIG_VerifySigUsingRSAKeyValue(strSig64, strXmlKey)
End Sub
Public Sub TestF60T33InnerXmlSigByRSA()
' THIS WORKS...
Dim strSig64 As String
Dim strXmlKey As String
strXmlKey = "<RSAKeyValue><Modulus>" & _
"tNEknkb1kHiD1OOAWlLKkcH/UP5UGa6V6MYso++JB+vYMg2OXFROAF7G8BNFFPQx" & _
"iuS/7y1azZljN2xq+bW3bAou1bW2ij7fxSXWTJYFZMAyndbLyGHM1e3nVmwpgEpx" & _
"BHhZzPvwLb55st1wceuKjs2Ontb13J33sUb7bbJMWh0=</Modulus>" & _
"<Exponent>AQAB</Exponent></RSAKeyValue>"
strSig64 = "JG1Ig0pvSIH85kIKGRZUjkyX6CNaY08Y94j4UegTgDe8+wl61GzqjdR1rfOK9BGn93AMOo6aiAgolW0k/XklNVtM/ZzpNNS3d/fYVa1q509mAMSXbelxSM3bjoa7H6Wzd/mV1PpQ8zK5gw7mgMMP4IKxHyS92G81GEguSmzcQmA="
Call XMLDSIG_VerifySigUsingRSAKeyValue(strSig64, strXmlKey)
End Sub
Public Sub TestF60T33FRMTSigByRSA()
Dim strSig64 As String
Dim strXmlKey As String
strXmlKey = "<RSAKeyValue><Modulus>" & _
"0a4O6Kbx8Qj3K4iWSP4w7KneZYeJ+g/prihYtIEolKt3cykSxl1zO8vSXu397QhTmsX7SBEudTUx++2zDXBhZw==</Modulus>" & _
"<Exponent>Aw==</Exponent></RSAKeyValue>"
strSig64 = "GbmDcS9e/jVC2LsLIe1iRV12Bf6lxsILtbQiCkh6mbjckFCJ7fj/kakFTS06Jo8iS4HXvJj3oYZuey53Krniew=="
Call XMLDSIG_VerifySigUsingRSAKeyValue(strSig64, strXmlKey)
End Sub
Sub Main()
Console.WriteLine("DOING ALL TESTS...")
Console.WriteLine("\n Read_SmallerKeys() \n")
Read_SmallerKeys()
Console.WriteLine("\n MakeFRMTdigest() \n")
MakeFRMTdigest()
Console.WriteLine("\n SignDDtoMakeFRMTsig() \n")
SignDDtoMakeFRMTsig()
Console.WriteLine("\n CheckExampleCertAndRSAKey() \n")
CheckExampleCertAndRSAKey()
Console.WriteLine("\n CheckManualCertAndRSAKey() \n")
CheckManualCertAndRSAKey()
Console.WriteLine("\n Test_Make_Hash_of_File() \n")
Test_Make_Hash_of_File()
Console.WriteLine("\n Test_DigestSignedInfo() \n")
Test_DigestSignedInfo()
Console.WriteLine("\n TestReadFRMA() \n")
TestReadFRMA()
Console.WriteLine("\n MakeFRMAdigest() \n")
MakeFRMAdigest()
Console.WriteLine("\n TestReadFRMT() \n")
TestReadFRMT()
Console.WriteLine("\n TestF60T33OuterXmlSigByCert() \n")
TestF60T33OuterXmlSigByCert()
Console.WriteLine("\n TestF60T33OuterXmlSigByRSA() \n")
TestF60T33OuterXmlSigByRSA()
Console.WriteLine("\n TestF60T33InnerXmlSigByRSA() \n")
TestF60T33InnerXmlSigByRSA()
Console.WriteLine("\n TestF60T33FRMTSigByRSA() \n")
TestF60T33FRMTSigByRSA()
End Sub
End Module