int EVP_DigestVerifyInit(EVP_MD_CTX *ctx, EVP_PKEY_CTX **pctx,
const EVP_MD *type, ENGINE *e, EVP_PKEY *pkey);
int EVP_DigestVerifyFinal(EVP_MD_CTX *ctx,
- unsigned char *sig, size_t siglen);
+ const unsigned char *sig, size_t siglen);
int EVP_OpenInit(EVP_CIPHER_CTX *ctx,const EVP_CIPHER *type,
const unsigned char *ek, int ekl, const unsigned char *iv,