diff options
Diffstat (limited to 'lib/crypto')
| -rw-r--r-- | lib/crypto/c_src/crypto.c | 96 |
1 files changed, 72 insertions, 24 deletions
diff --git a/lib/crypto/c_src/crypto.c b/lib/crypto/c_src/crypto.c index 0eb149892d..53fe233790 100644 --- a/lib/crypto/c_src/crypto.c +++ b/lib/crypto/c_src/crypto.c @@ -2730,24 +2730,6 @@ static int get_dss_public_key(ErlNifEnv* env, ERL_NIF_TERM key, DSA *dsa) return 1; } -static int rsa_pad(ERL_NIF_TERM term, int* padding) -{ - if (term == atom_rsa_pkcs1_padding) { - *padding = RSA_PKCS1_PADDING; - } - else if (term == atom_rsa_pkcs1_oaep_padding) { - *padding = RSA_PKCS1_OAEP_PADDING; - } - else if (term == atom_rsa_no_padding) { - *padding = RSA_NO_PADDING; - } - else { - return 0; - } - return 1; -} - - /* Creates a term which can be parsed by get_rsa_private_key(). This is a list of plain integer binaries (not mpints). */ static ERL_NIF_TERM put_rsa_private_key(ErlNifEnv* env, const RSA *rsa) { @@ -4218,7 +4200,9 @@ static int get_pkey_crypt_options(ErlNifEnv *env, ERL_NIF_TERM algorithm, ERL_NI tail = options; while (enif_get_list_cell(env, tail, &head, &tail)) { if (enif_get_tuple(env, head, &tpl_arity, &tpl_terms) && tpl_arity == 2) { - if (tpl_terms[0] == atom_rsa_padding || tpl_terms[0] == atom_rsa_pad) { + if (tpl_terms[0] == atom_rsa_padding + || tpl_terms[0] == atom_rsa_pad /* Compatibility */ + ) { if (tpl_terms[1] == atom_rsa_pkcs1_padding) { opt->rsa_padding = RSA_PKCS1_PADDING; } else if (tpl_terms[1] == atom_rsa_pkcs1_oaep_padding) { @@ -4283,15 +4267,19 @@ static ERL_NIF_TERM pkey_crypt_nif(ErlNifEnv *env, int argc, const ERL_NIF_TERM {/* (Algorithm, Data, PublKey=[E,N]|[E,N,D]|[E,N,D,P1,P2,E1,E2,C], Options, IsPrivate, IsEncrypt) */ int i; EVP_PKEY *pkey; +#ifdef HAS_EVP_PKEY_CTX EVP_PKEY_CTX *ctx; +#else + RSA *rsa; +#endif PKeyCryptOptions crypt_opt; ErlNifBinary in_bin, out_bin, tmp_bin; size_t outlen, tmplen; int is_private = (argv[4] == atom_true), is_encrypt = (argv[5] == atom_true); + int algo_init = 0; -int algo_init = 0; -char algo[1024]; +/* char algo[1024]; */ if (!enif_inspect_binary(env, argv[1], &in_bin)) { return enif_make_badarg(env); @@ -4320,10 +4308,11 @@ char algo[1024]; tmp_bin.data = NULL; tmp_bin.size = 0; +#ifdef HAS_EVP_PKEY_CTX ctx = EVP_PKEY_CTX_new(pkey, NULL); if (!ctx) goto badarg; -enif_get_atom(env,argv[0],algo,1024,ERL_NIF_LATIN1); +/* enif_get_atom(env,argv[0],algo,1024,ERL_NIF_LATIN1); */ if (is_private) { if (is_encrypt) { @@ -4439,7 +4428,59 @@ enif_get_atom(env,argv[0],algo,1024,ERL_NIF_LATIN1); } } - if ((i == 1) && argv[0] == atom_rsa && !is_encrypt) { +#else + /* Non-EVP cryptolib. Only support RSA */ + + if (argv[0] != atom_rsa) { + algo_init = -2; /* exitcode: notsup */ + goto badarg; + } + rsa = EVP_PKEY_get1_RSA(pkey); + enif_alloc_binary(RSA_size(rsa), &out_bin); + + if (is_private) { + if (is_encrypt) { + /* non-evp rsa private encrypt */ + ERL_VALGRIND_ASSERT_MEM_DEFINED(in_bin.data,in_bin.size); + i = RSA_private_encrypt(in_bin.size, in_bin.data, + out_bin.data, rsa, crypt_opt.rsa_padding); + if (i > 0) { + ERL_VALGRIND_MAKE_MEM_DEFINED(out_bin.data, i); + } + } else { + /* non-evp rsa private decrypt */ + i = RSA_private_decrypt(in_bin.size, in_bin.data, + out_bin.data, rsa, crypt_opt.rsa_padding); + if (i > 0) { + ERL_VALGRIND_MAKE_MEM_DEFINED(out_bin.data, i); + enif_realloc_binary(&out_bin, i); + } + } + } else { + if (is_encrypt) { + /* non-evp rsa public encrypt */ + ERL_VALGRIND_ASSERT_MEM_DEFINED(in_bin.data,in_bin.size); + i = RSA_public_encrypt(in_bin.size, in_bin.data, + out_bin.data, rsa, crypt_opt.rsa_padding); + if (i > 0) { + ERL_VALGRIND_MAKE_MEM_DEFINED(out_bin.data, i); + } + } else { + /* non-evp rsa public decrypt */ + i = RSA_public_decrypt(in_bin.size, in_bin.data, + out_bin.data, rsa, crypt_opt.rsa_padding); + if (i > 0) { + ERL_VALGRIND_MAKE_MEM_DEFINED(out_bin.data, i); + enif_realloc_binary(&out_bin, i); + } + } + } + + outlen = i; + RSA_free(rsa); +#endif + + if ((i > 0) && argv[0] == atom_rsa && !is_encrypt) { if (crypt_opt.rsa_padding == RSA_SSLV23_PADDING) { RSA *rsa = EVP_PKEY_get1_RSA(pkey); unsigned char *p; @@ -4462,9 +4503,13 @@ enif_get_atom(env,argv[0],algo,1024,ERL_NIF_LATIN1); if (tmp_bin.data != NULL) { enif_release_binary(&tmp_bin); } + +#ifdef HAS_EVP_PKEY_CTX EVP_PKEY_CTX_free(ctx); +#else +#endif EVP_PKEY_free(pkey); - if (i == 1) { + if (i > 0) { ERL_VALGRIND_MAKE_MEM_DEFINED(out_bin.data, outlen); if (outlen != out_bin.size) { enif_realloc_binary(&out_bin, outlen); @@ -4483,7 +4528,10 @@ enif_get_atom(env,argv[0],algo,1024,ERL_NIF_LATIN1); if (tmp_bin.data != NULL) { enif_release_binary(&tmp_bin); } +#ifdef HAS_EVP_PKEY_CTX EVP_PKEY_CTX_free(ctx); +#else +#endif EVP_PKEY_free(pkey); if (algo_init == -2) return atom_notsup; |