Developer Guide and Reference for Intel® Integrated Performance Primitives Cryptography
RSAEncrypt_OAEP
Carries out the RSA-OAEP encryption scheme.
Syntax
IppStatus ippsRSAEncrypt_OAEP(const Ipp8u* pSrc, int srcLen, const Ipp8u* pLabel, int labLen, const Ipp8u* pSeed, Ipp8u* pDst, const IppsRSAPublicKeyState* pKey, IppHashAlgId hashAlg, Ipp8u* pBuffer);
IppStatus ippsRSAEncrypt_OAEP_rmf(const Ipp8u* pSrc, int srcLen, const Ipp8u* pLabel, int labLen, const Ipp8u* pSeed, Ipp8u* pDst, const IppsRSAPublicKeyState* pKey, const IppsHashMethod* pMethod, Ipp8u* pBuffer);
Include Files
ippcp.h
Parameters
| pSrc | Pointer to the octet message to be encrypted. | 
| srcLen | Length of the message to be encrypted. | 
| pLabel | Pointer to the optional label to be associated with the message. | 
| labLen | Length of the optional label. | 
| pSeed | Pointer to the random octet string of length hashLen, where hashLen is the length (in octets) of the hash function output. | 
| pDst | Pointer to the output octet ciphertext string. | 
| pKey | Pointer to the properly initialized IppsRSAPublicKeyState context. | 
| hashAlg | ID of the hash algorithm used. For details, see table Supported Hash Algorithms. | 
| pMethod | Pointer to the hash method. For details, see HashMethod functions. | 
| pBuffer | Pointer to a temporary buffer of size not less than returned by the RSA_GetBufferSizePublicKey function. | 
Description
The function carries out the RSA-OAEP encryption scheme, defined in PKCS 1.2.1. The length of the encrypted message is equal to the size of the RSA modulus n.
Return Values
| 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 the context parameter does not match the operation. | 
| ippStsIncompleteContextErr | Indicates an error condition if the public key is not set up. | 
| ippStsLengthErr | Indicates an error condition if the any input/output length parameters are inconsistent with one another. | 
| ippStsNotSupportedModeErr | if the hashAlg parameter does not match any value of IppHashAlgId listed in table Supported Hash Algorithms. | 
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