The Digital Signature Algorithm (DSA) is a United States Federal Government standard or FIPS for digital signatures. It was proposed by the National Institute of Standards and Technology (NIST) in August 1991 for use in their Digital Signature Standard (DSS). // ...

Shows how to create a DSA (DSS) signature for the contents of a file. The first step is to create an SHA-1 hash of the file contents. The hash is signed using the Digital Signature Algorithm and the signature bytes are retrieved as a hex-encoded string. The 2nd part of the example loads the signature and verifies it against the hash.

Generates a DSA public/private key pair and saves to PEM and DER file formats (both encrypted and non-encrypted). ... void ChilkatSample(void) // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. CkDsa dsa; // Call GenKey to generate a new DSA key.

Shows how to create a DSA (DSS) signature for the contents of a file. The first step is to create an SHA-1 hash of the file contents. The hash is signed using the Digital Signature Algorithm and the signature bytes are retrieved as a hex-encoded string. The 2nd part of the example loads the signature and verifies it against the hash.

It was proposed by the National Institute of Standards and Technology (NIST) in August 1991 for use in their Digital Signature Standard (DSS). If set to a file path, causes each Chilkat method or property call to automatically append it's LastErrorText to the specified log file.

I'm able to successfully pass the PQGY strings via CkDsa::SetPubKeyExplicit() and CkDsa::VerifyKey() returns true. What I don't understand is how to pass the 'Signature Part R' and 'Signature Part S' encoded hex strings to CkDsa::SetEncodedSignature().

procedure CkDsa_put GroupSize (objHandle: HCkDsa; newPropVal: Integer); stdcall; The group size (in bits) to be used in DSA key generation. The default value is 160 and corresponds to the fact that SHA-1 is used in signature generation.

Passed in 1996 under Prime Minister Jean Chrétien 's government, it repeals the Narcotic Control Act and Parts III and IV of the Food and Drugs Act, and establishes eight Schedules of controlled substances and two Classes of precursors.

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