AI_EC_DSA
Key info types for keyObject in B_SignInit:
KI_ECPrivate or KI_ECPrivateBER.
Key info types for keyObject in B_VerifyInit:
KI_ECPublic or KI_ECPublicBER.
Input constraints:
In practice, the input to the ECDSA algorithm — that is, the data to sign — is generally the result of a digest operation. In
Output considerations:
The signature result of B_SignFinal is the concatenation of the signature elements (r,s), as defined in section 5.3.1 of the X9.57 Draft. The size of signature is 2*(length of order) bytes. For instance, if the order is 160 bits (20 bytes), the signature will be 40 bytes long.
C h a p t e r 2 A l g o r i t h m I n f o Ty p e s | 67 |
