Decrypts ciphertext using ECIES with XOR encryption, standard Diffie-Hellman, ANSI X9.42/X9.63 KDF with SHA-1 and HMAC-SHA-1 primitives.
#include "huecc.h"
int hu_ECIESDecrypt(sb_Params eccParams, sb_PrivateKey privateKey, size_t addInfoKDFLen, const unsigned char *addInfoKDF, size_t addInfoHMACLen, const unsigned char *addInfoHMAC, size_t ciphertextLen, const unsigned char *ciphertext, size_t *plaintextLen, unsigned char *plaintext, sb_GlobalCtx sbCtx)
BlackBerry 10.0.0
An ECC parameters object.
An ECC private key object.
The length (in bytes) of additional information for KDF. (Optional)
Additional information for KDF. (Optional - set to NULL if not used.)
The length (in bytes) of additional information for HMAC. (Optional)
Additional information for HMAC. (Optional - set to NULL if not used.)
The length (in bytes) of the ciphertext.
The ciphertext.
The length (in bytes) of the plaintext.
The plaintext.
A global context.
If the length of the plaintext is known, a pointer to a buffer large enough to hold the plaintext should be passed in plaintext and its length in plaintextLen. This function will copy the plaintext into plaintext and set the actual length of the plaintext in plaintextLen.
If plaintext is NULL, this function will set the correct length of the plaintext in plaintextLen. If plaintext is not NULL but plaintextLen is too small, this function will return an error.
If this function returns SB_FAIL_ECIES_HMAC, the integrity check on the ciphertext failed, and could be due to using the wrong private key or corrupted ciphertext or MAC tag.
The eccParams object is NULL.
The tag for the params object is not of the expected type.
The privateKey object NULL.
The privateKey object invalid.
The ciphertext buffer is NULL.
The length of the ciphertext buffer length is invalid.
The plaintext buffer is NULL.
The length of the plaintext buffer is invalid.
The ephemeral public key in the ciphertext is invalid.
The ciphertext integrity check failed.
Memory allocation failure.
Success.