Common Data Security Architecture (CDSA) White Paper

28 Chapter1

Cryptography Service Provider (CSP) API

CSP_GenerateMacFinal ()

Each operation accepts as input a handle to a cryptographic context describing the MAC

operation and the data on which to operate. The result of the completed MAC operation is

returned in a CSSM_DATA structure.

CSP_VerifyMac ()

CSP_VerifyMacInit ()

CSP_VerifyMacUpdate ()

CSP_VerifyMacFinal ()

Each operation accepts as input a handle to a cryptographic context describing the MAC

operation and the data on which to operate. The result of the completed verify operation is a

CSSM_RETURN value.

CSP_QuerySize ()

Accepts as input a handle to a cryptographic context describing the encryption or decryption

operation, and an array of input block sizes. This function returns the output block sizes

corresponding to the input sizes for the speciﬁed algorithm.

CSP_EncryptData ()

CSP_EncryptDataInit ()

CSP_EncryptDataUpdate ()

CSP_EncryptDataFinal ()

Each operation accepts as input a handle to a cryptographic context describing the encryption

operation and the data to operate on. The encrypted data is returned in CSSM_DATA

structures.

CSP_DecryptData ()

CSP_DecryptDataInit ()

CSP_DecryptDataUpdate ()

CSP_DecryptDataFinal ()

Each operation accepts as input a handle to a cryptographic context describing the decryption

operation and the data on which to operate. The decrypted data is returned in CSSM_DATA

structures.

CSP_GenerateKey ()

Accepts as input a handle to a cryptographic context describing the generate key operation

and attributes of the new key. The key is returned in a CSSM_KEY structure.