diff options
Diffstat (limited to 'crypto/dsa/dsa_lib.c')
| -rw-r--r-- | crypto/dsa/dsa_lib.c | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/crypto/dsa/dsa_lib.c b/crypto/dsa/dsa_lib.c index e3205223e9..b773f2c526 100644 --- a/crypto/dsa/dsa_lib.c +++ b/crypto/dsa/dsa_lib.c @@ -19,7 +19,9 @@ #include <openssl/bn.h> #include <openssl/asn1.h> #include <openssl/engine.h> +#include <openssl/core_names.h> #include "dsa_local.h" +#include "crypto/evp.h" #include "crypto/dsa.h" #include "crypto/dh.h" /* required by DSA_dup_DH() */ @@ -342,3 +344,162 @@ FFC_PARAMS *dsa_get0_params(DSA *dsa) { return &dsa->params; } + +int dsa_ffc_params_fromdata(DSA *dsa, const OSSL_PARAM params[]) +{ + int ret; + FFC_PARAMS *ffc; + + if (dsa == NULL) + return 0; + ffc = dsa_get0_params(dsa); + if (ffc == NULL) + return 0; + + ret = ffc_params_fromdata(ffc, params); + if (ret) + dsa->dirty_cnt++; + return ret; +} + +static int dsa_paramgen_check(EVP_PKEY_CTX *ctx) +{ + if (ctx == NULL || !EVP_PKEY_CTX_IS_GEN_OP(ctx)) { + ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); + /* Uses the same return values as EVP_PKEY_CTX_ctrl */ + return -2; + } + /* If key type not DSA return error */ + if (ctx->pmeth != NULL && ctx->pmeth->pkey_id != EVP_PKEY_DSA) + return -1; + return 1; +} + +int EVP_PKEY_CTX_set_dsa_paramgen_type(EVP_PKEY_CTX *ctx, const char *name) +{ + int ret; + OSSL_PARAM params[2], *p = params; + + if ((ret = dsa_paramgen_check(ctx)) <= 0) + return ret; + + *p++ = OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_FFC_TYPE, + (char *)name, 0); + *p++ = OSSL_PARAM_construct_end(); + + return EVP_PKEY_CTX_set_params(ctx, params); +} + +int EVP_PKEY_CTX_set_dsa_paramgen_gindex(EVP_PKEY_CTX *ctx, int gindex) +{ + int ret; + OSSL_PARAM params[2], *p = params; + + if ((ret = dsa_paramgen_check(ctx)) <= 0) + return ret; + + *p++ = OSSL_PARAM_construct_int(OSSL_PKEY_PARAM_FFC_GINDEX, &gindex); + *p++ = OSSL_PARAM_construct_end(); + + return EVP_PKEY_CTX_set_params(ctx, params); +} + +int EVP_PKEY_CTX_set_dsa_paramgen_seed(EVP_PKEY_CTX *ctx, + const unsigned char *seed, + size_t seedlen) +{ + int ret; + OSSL_PARAM params[2], *p = params; + + if ((ret = dsa_paramgen_check(ctx)) <= 0) + return ret; + + *p++ = OSSL_PARAM_construct_octet_string(OSSL_PKEY_PARAM_FFC_SEED, + (void *)seed, seedlen); + *p++ = OSSL_PARAM_construct_end(); + + return EVP_PKEY_CTX_set_params(ctx, params); +} + +int EVP_PKEY_CTX_set_dsa_paramgen_bits(EVP_PKEY_CTX *ctx, int nbits) +{ + int ret; + OSSL_PARAM params[2], *p = params; + size_t bits = nbits; + + if ((ret = dsa_paramgen_check(ctx)) <= 0) + return ret; + +#if !defined(FIPS_MODE) + /* TODO(3.0): Remove this eventually when no more legacy */ + if (ctx->op.keymgmt.genctx == NULL) + return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DSA, EVP_PKEY_OP_PARAMGEN, + EVP_PKEY_CTRL_DSA_PARAMGEN_BITS, nbits, NULL); +#endif + + *p++ = OSSL_PARAM_construct_size_t(OSSL_PKEY_PARAM_FFC_PBITS, &bits); + *p++ = OSSL_PARAM_construct_end(); + + return EVP_PKEY_CTX_set_params(ctx, params); +} + +int EVP_PKEY_CTX_set_dsa_paramgen_q_bits(EVP_PKEY_CTX *ctx, int qbits) +{ + int ret; + OSSL_PARAM params[2], *p = params; + size_t bits2 = qbits; + + if ((ret = dsa_paramgen_check(ctx)) <= 0) + return ret; + +#if !defined(FIPS_MODE) + /* TODO(3.0): Remove this eventually when no more legacy */ + if (ctx->op.keymgmt.genctx == NULL) + return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DSA, EVP_PKEY_OP_PARAMGEN, + EVP_PKEY_CTRL_DSA_PARAMGEN_Q_BITS, qbits, NULL); +#endif + + *p++ = OSSL_PARAM_construct_size_t(OSSL_PKEY_PARAM_FFC_QBITS, &bits2); + *p++ = OSSL_PARAM_construct_end(); + + return EVP_PKEY_CTX_set_params(ctx, params); +} + +int EVP_PKEY_CTX_set_dsa_paramgen_md_props(EVP_PKEY_CTX *ctx, + const char *md_name, + const char *md_properties) +{ + int ret; + OSSL_PARAM params[3], *p = params; + + if ((ret = dsa_paramgen_check(ctx)) <= 0) + return ret; + +#if !defined(FIPS_MODE) + /* TODO(3.0): Remove this eventually when no more legacy */ + if (ctx->op.keymgmt.genctx == NULL) { + const EVP_MD *md = EVP_get_digestbyname(md_name); + + EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DSA, EVP_PKEY_OP_PARAMGEN, + EVP_PKEY_CTRL_DSA_PARAMGEN_MD, 0, (void *)(md)); + } +#endif + + *p++ = OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_FFC_DIGEST, + (char *)md_name, 0); + if (md_properties != NULL) + *p++ = OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_FFC_DIGEST_PROPS, + (char *)md_properties, 0); + *p++ = OSSL_PARAM_construct_end(); + + return EVP_PKEY_CTX_set_params(ctx, params); +} + +#if !defined(FIPS_MODE) +int EVP_PKEY_CTX_set_dsa_paramgen_md(EVP_PKEY_CTX *ctx, const EVP_MD *md) +{ + const char *md_name = (md == NULL) ? "" : EVP_MD_name(md); + + return EVP_PKEY_CTX_set_dsa_paramgen_md_props(ctx, md_name, NULL); +} +#endif |