2.5.1.2 CryptoAPI Digital Signature CertificateInfo Structure
The CertificateInfo structure has the format that is shown in the following diagram.
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CertificateInfoSize |
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SignerLength |
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IssuerLength |
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ExpireTime |
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SignTime |
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AlgIDHash |
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SignatureSize |
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EncodedCertificateSize |
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Version |
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SerialNumberSize |
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IssuerBlobSize |
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Reserved |
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SignerName (variable) |
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IssuerName (variable) |
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Signature (variable) |
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EncodedCertificate (variable) |
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SerialNumber (variable) |
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IssuerBlob (variable) |
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CertificateInfoSize (4 bytes): An unsigned integer specifying the number of bytes used by the remainder of this structure, not including CertificateInfoSize.
SignerLength (4 bytes): An unsigned integer specifying the number of characters needed to store the SignerName field, not including the terminating null character.
IssuerLength (4 bytes): An unsigned integer specifying the number of characters needed to store the IssuerName field, not including the terminating null character.
ExpireTime (8 bytes): A TimeEncoding structure (section 2.5.1.1) specifying the expiration time of this signature.
SignTime (8 bytes): A TimeEncoding structure specifying the time this signature was created.
AlgIDHash (4 bytes): A signed integer specifying the algorithm identifier. It MUST be 0x00008003 (MD5).
SignatureSize (4 bytes): An unsigned integer specifying the number of bytes used by the Signature field.
EncodedCertificateSize (4 bytes): An unsigned integer specifying the number of bytes used by the EncodedCertificate field.
Version (4 bytes): A value that MUST be 0x00000000.
SerialNumberSize (4 bytes): An unsigned integer specifying the number of bytes used by the SerialNumber field.
IssuerBlobSize (4 bytes): An unsigned integer specifying the number of bytes used by the IssuerBlob field.
Reserved (4 bytes): A value that MUST be 0x00000000.
SignerName (variable): A null-terminated Unicode string specifying the name of the signer.
IssuerName (variable): A null-terminated Unicode string specifying the name of the issuer.
Signature (variable): A binary representation of the signature, generated as specified in [RFC3280], except stored in little-endian form.
EncodedCertificate (variable): An encoded representation of the certificate. MUST contain the ASN.1 [ITUX680-1994] DER encoding of an X.509 certificate. For more details, see [RFC3280].
SerialNumber (variable): An array of bytes specifying the serial number of the certificate as specified in [RFC3280], with the least significant byte first. Any leading 0x00 bytes MUST be truncated.
IssuerBlob (variable): An ASN.1 structure as specified in IETF [RFC3280] section 4.1.2.4.