Signing Data

The following sections deal with encoding and decoding signed data, including messages, certificates, certificate revocation lists (CRLs), and certificate trust lists (CTLs):

• Creating a Signed Message
• Procedure for Signing Data
• Verifying a Signed Message
• Encoding Signed Data
• Decoding Signed Data
• Example C Program: Signing a Message and Verifying a Message Signature
• Example C Program: Signing, Encoding, Decoding, and Verifying a Message
• Example C Program: Encoding and Decoding a Message Using a Stream
• Example C Program: Sending and Receiving a Signed and Encrypted Message
• Example C Program: Receiving a Signed and Encrypted Message
• Example C Program: Cosigning and Decoding a Message
• Countersigning
• Signing Files and Checking Signatures