Developer Reference for Intel® Integrated Performance Primitives Cryptography
Initialize user-supplied memory as the IppsRSAPublicKeyState or IppsRSAPrivateKeyState context for future use.
IppStatus ippsRSA_InitPublicKey(int rsaModulusBitSize, int publicExpBitSize, IppsRSAPublicKeyState* pKey, int keyCtxSize);
IppStatus ippsRSA_InitPrivateKeyType1(int rsaModulusBitSize, int privateExpBitSize, IppsRSAPrivateKeyState* pKey, int keyCtxSize);
IppStatus ippsRSA_InitPrivateKeyType2(int factorPBitSize, int FactorQBitSize, IppsRSAPrivateKeyState* pKey, int keyCtxSize);
ippcp.h
rsaModulusBitSize |
Length of the RSA system in bits (that is, the length of the composite RSA modulus n in bits). |
publicExpBitSize |
Length of the RSA public exponent in bits (that is, the length of the e component of the RSA public key). |
privateExpBitSize |
Length of the RSA private exponent in bits (that is, the length of the d component of the type 1 RSA private key). |
factorPBitSize, FactorQBitSize |
Length in bits of the p and q factors of the RSA modulus n = p*q. |
pKey |
Pointer to the IppsRSAPublicKeyState or IppsRSAPrivateKeyState context being initialized. The context depends on the function. |
keyCtxSize |
Available size in bytes of the memory buffer being initialized. |
These functions initialize the memory pointed by pKey as the IppsRSAPublicKeyState or IppsRSAPrivateKeyState context, depending on the function. To determine the size of the memory buffer, call the appropriate RSA_GetSizePublicKey, RSA_GetSizePrivateKeyType1, RSA_GetSizePrivateKeyType2 function prior to calling any of these functions.
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. |
ippStsNotSupportedModeErr |
Indicates an error condition if rsaModulusBitSize < 32 or rsaModulusBitSize > 4096, factorPBitSize < 16 or factorPBitSize > 4096, or factorQBitSize < 16 or factorQBitSize > 4096. |
ippStsBadArgErr |
Indicates an error condition if publicExpBitSize > rsaModulusBitSize or privateExpBitSize > rsaModulusBitSize. |
ippStsMemAllocErr |
Indicates an error condition if the allocated memory is insufficient for the operation. |