Developer Reference for Intel® Integrated Performance Primitives Cryptography
Set up an RSA key in the existing RSA key context.
IppStatus ippsRSA_SetPublicKey(const IppsBigNumState* pModulus, const IppsBigNumState* pPublicExp, IppsRSAPublicKeyState* pKey);
IppStatus ippsRSA_SetPrivateKeyType1(const IppsBigNumState* pModulus, const IppsBigNumState* pPrivateExp, IppsRSAPrivateKeyState* pKey);
IppStatus ippsRSA_SetPrivateKeyType2(const IppsBigNumState* pFactorP, const IppsBigNumState* pFactorQ, const IppsBigNumState* pCrtExpP, const IppsBigNumState* pCrtExpQ, const IppsBigNumState* pInverseQ, IppsRSAPrivateKeyState* pKey);
ippcp.h
pModulus |
The composite RSA modulus n. |
pPublicExp |
The e component of the RSA public key. |
pPrivateExp |
The d component of the type 1 RSA private key. |
pFactorP, pFactorQ |
The p and q factors of the RSA modulus n = p*q. |
pCrtExpP, pCrtExpQ |
The dP and dQ components of the quintuple (p,q,dP,dQ,qInv), which defines a type 2 private key. |
pInverseQ |
The qInv component of the quintuple (p,q,dP,dQ,qInv). |
pKey |
Pointer to the IppsRSAPublicKeyState or IppsRSAPrivateKeyState context. |
The RSA_SetPublicKey function sets up the RSA public key (n, e) in the IppsRSAPublicKeyState context, that is, copies the n and e components supplied by the user into the context.
The RSA_SetPrivateKeyType1 function sets up the RSA type 1 private key (n, d) in the IppsRSAPrivateKeyState context, that is, copies the n and d components supplied by the user into the context.
The RSA_SetPrivateKeyType2 function sets up the RSA type 2 private key (p,q,dP,dQ,qInv) in the IppsRSAPrivateKeyState context, that is, copies user-supplied p and q factors of the RSA composite modulus into the context, computes the rest of the key components, and copies them into the context:
dP = q mod (p-1)
dQ = p mod (q-1)
qInv = 1/q mod p
ippStsNoErr |
Indicates no error. Any other value indicates an error or warning. |
ippStsNullPtrErr |
Indicates an error condition if any of the specified pointers is NULL. |
ippStsContextMatchErr |
Indicates an error condition if any of the context parameters does not match the operation. |
ippStsSizeErr |
Indicates an error condition if the bit length of a key component specified by the pModulus, pPublicExp, pPrivateExp, pFactorP, or pFactorQ pointer exceeds the bit length specified at the initialization. |
ippStsOutOfRangeErr |
Indicates an error condition if any key component is not positive. |