gost_gost2015.h

   1 #ifndef GOST_GOST2015_H
   2 #define GOST_GOST2015_H
   3
   4 #include <openssl/evp.h>
   5 #include <openssl/x509.h>
   6
   7 #define MAGMA_MAC_MAX_SIZE 8
   8 #define KUZNYECHIK_MAC_MAX_SIZE 16
   9 #define OID_GOST_CMS_MAC "1.2.643.7.1.0.6.1.1"
  10
  11 int gost2015_final_call(EVP_CIPHER_CTX *ctx, EVP_MD_CTX *omac_ctx, size_t mac_size,
  12                         unsigned char *encrypted_mac,
  13                         int (*do_cipher) (EVP_CIPHER_CTX *ctx,
  14                                 unsigned char *out,
  15                                 const unsigned char *in,
  16                                 size_t inl));
  17
  18 /* IV is expected to be 16 bytes*/
  19 int gost2015_get_asn1_params(const ASN1_TYPE *params, size_t ukm_size,
  20         unsigned char *iv, size_t ukm_offset, unsigned char *kdf_seed);
  21
  22 int gost2015_set_asn1_params(ASN1_TYPE *params,
  23         const unsigned char *iv, size_t iv_size, const unsigned char *kdf_seed);
  24
  25 int gost2015_process_unprotected_attributes(STACK_OF(X509_ATTRIBUTE) *attrs,
  26             int encryption, size_t mac_len, unsigned char *final_tag);
  27
  28 int gost2015_acpkm_omac_init(int nid, int enc, const unsigned char *inkey,
  29                              EVP_MD_CTX *omac_ctx,
  30                              unsigned char *outkey, unsigned char *kdf_seed);
  31 int init_zero_kdf_seed(unsigned char *kdf_seed);
  32
  33 #endif