CTR, HASH and HMAC DRBGs in provider

[openssl.git] / crypto / evp / evp_lib.c

diff --git a/crypto/evp/evp_lib.c b/crypto/evp/evp_lib.c
index 229485102a6515ee73f3f4830c5329ba58430c24..ef978ec6f1b8615c3fc9e11c60150e6e4025e8a2 100644 (file)
--- a/crypto/evp/evp_lib.c
+++ b/crypto/evp/evp_lib.c
@@ -14,6 +14,7 @@
 #include <openssl/params.h>
 #include <openssl/core_names.h>
 #include <openssl/dh.h>
+#include <openssl/ec.h>
 #include "crypto/evp.h"
 #include "internal/provider.h"
 #include "evp_local.h"
@@ -940,3 +941,71 @@ int EVP_hex2ctrl(int (*cb)(void *ctx, int cmd, void *buf, size_t buflen),
     OPENSSL_free(bin);
     return rv;
 }
+
+int EVP_PKEY_CTX_set_group_name(EVP_PKEY_CTX *ctx, const char *name)
+{
+    OSSL_PARAM params[] = { OSSL_PARAM_END, OSSL_PARAM_END };
+    OSSL_PARAM *p = params;
+
+    if (ctx == NULL) {
+        ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
+        /* Uses the same return values as EVP_PKEY_CTX_ctrl */
+        return -2;
+    }
+
+    if (!EVP_PKEY_CTX_IS_GEN_OP(ctx)) {
+#ifndef FIPS_MODULE
+        int nid;
+
+        /* Could be a legacy key, try and convert to a ctrl */
+        if (ctx->pmeth != NULL && (nid = OBJ_txt2nid(name)) != NID_undef) {
+# ifndef OPENSSL_NO_DH
+            if (ctx->pmeth->pkey_id == EVP_PKEY_DH)
+                return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DH,
+                                         EVP_PKEY_OP_PARAMGEN
+                                         | EVP_PKEY_OP_KEYGEN,
+                                         EVP_PKEY_CTRL_DH_NID, nid, NULL);
+# endif
+# ifndef OPENSSL_NO_EC
+            if (ctx->pmeth->pkey_id == EVP_PKEY_EC)
+                return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC,
+                                         EVP_PKEY_OP_PARAMGEN|EVP_PKEY_OP_KEYGEN,
+                                         EVP_PKEY_CTRL_EC_PARAMGEN_CURVE_NID,
+                                         nid, NULL);
+# endif
+        }
+#endif
+        ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
+        /* Uses the same return values as EVP_PKEY_CTX_ctrl */
+        return -2;
+    }
+
+    if (name == NULL)
+        return -1;
+
+    *p++ = OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_GROUP_NAME,
+                                            (char *)name, 0);
+    return EVP_PKEY_CTX_set_params(ctx, params);
+}
+
+int EVP_PKEY_CTX_get_group_name(EVP_PKEY_CTX *ctx, char *name, size_t namelen)
+{
+    OSSL_PARAM params[] = { OSSL_PARAM_END, OSSL_PARAM_END };
+    OSSL_PARAM *p = params;
+
+    if (ctx == NULL || !EVP_PKEY_CTX_IS_GEN_OP(ctx)) {
+        /* There is no legacy support for this */
+        ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
+        /* Uses the same return values as EVP_PKEY_CTX_ctrl */
+        return -2;
+    }
+
+    if (name == NULL)
+        return -1;
+
+    *p++ = OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_GROUP_NAME,
+                                            name, namelen);
+    if (!EVP_PKEY_CTX_get_params(ctx, params))
+        return -1;
+    return 1;
+}