+{
+ int i = 0;
+ unsigned int j;
+ unsigned char *oiv = NULL;
+
+ if (type != NULL) {
+ oiv = (unsigned char *)EVP_CIPHER_CTX_original_iv(c);
+ j = EVP_CIPHER_CTX_iv_length(c);
+ OPENSSL_assert(j <= sizeof(c->iv));
+ i = ASN1_TYPE_set_octetstring(type, oiv, j);
+ }
+ return i;
+}
+#endif /* !defined(FIPS_MODE) */
+
+/* Convert the various cipher NIDs and dummies to a proper OID NID */
+int EVP_CIPHER_type(const EVP_CIPHER *ctx)
+{
+ int nid;
+ nid = EVP_CIPHER_nid(ctx);
+
+ switch (nid) {
+
+ case NID_rc2_cbc:
+ case NID_rc2_64_cbc:
+ case NID_rc2_40_cbc:
+
+ return NID_rc2_cbc;
+
+ case NID_rc4:
+ case NID_rc4_40:
+
+ return NID_rc4;
+
+ case NID_aes_128_cfb128:
+ case NID_aes_128_cfb8:
+ case NID_aes_128_cfb1:
+
+ return NID_aes_128_cfb128;
+
+ case NID_aes_192_cfb128:
+ case NID_aes_192_cfb8:
+ case NID_aes_192_cfb1:
+
+ return NID_aes_192_cfb128;
+
+ case NID_aes_256_cfb128:
+ case NID_aes_256_cfb8:
+ case NID_aes_256_cfb1:
+
+ return NID_aes_256_cfb128;
+
+ case NID_des_cfb64:
+ case NID_des_cfb8:
+ case NID_des_cfb1:
+
+ return NID_des_cfb64;
+
+ case NID_des_ede3_cfb64:
+ case NID_des_ede3_cfb8:
+ case NID_des_ede3_cfb1:
+
+ return NID_des_cfb64;
+
+ default:
+#ifdef FIPS_MODE
+ return NID_undef;
+#else
+ {
+ /* Check it has an OID and it is valid */
+ ASN1_OBJECT *otmp = OBJ_nid2obj(nid);
+
+ if (OBJ_get0_data(otmp) == NULL)
+ nid = NID_undef;
+ ASN1_OBJECT_free(otmp);
+ return nid;
+ }
+#endif
+ }
+}
+
+int EVP_CIPHER_block_size(const EVP_CIPHER *cipher)
+{
+ int ok;
+ size_t v = cipher->block_size;
+ OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
+
+ params[0] = OSSL_PARAM_construct_size_t(OSSL_CIPHER_PARAM_BLOCK_SIZE, &v);
+ ok = evp_do_ciph_getparams(cipher, params);
+
+ return ok != 0 ? (int)v : EVP_CTRL_RET_UNSUPPORTED;
+}
+
+int EVP_CIPHER_CTX_block_size(const EVP_CIPHER_CTX *ctx)
+{
+ return EVP_CIPHER_block_size(ctx->cipher);
+}
+
+int EVP_CIPHER_impl_ctx_size(const EVP_CIPHER *e)
+{
+ return e->ctx_size;
+}
+
+int EVP_Cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, unsigned int inl)
+{
+ if (ctx->cipher->prov != NULL) {
+ /*
+ * If the provided implementation has a ccipher function, we use it,
+ * and translate its return value like this: 0 => -1, 1 => outlen
+ *
+ * Otherwise, we call the cupdate function if in != NULL, or cfinal
+ * if in == NULL. Regardless of which, we return what we got.
+ */
+ int ret = -1;
+ size_t outl = 0;
+ size_t blocksize = EVP_CIPHER_CTX_block_size(ctx);
+
+ if (ctx->cipher->ccipher != NULL)
+ ret = ctx->cipher->ccipher(ctx->provctx, out, &outl,
+ inl + (blocksize == 1 ? 0 : blocksize),
+ in, (size_t)inl)
+ ? (int)outl : -1;
+ else if (in != NULL)
+ ret = ctx->cipher->cupdate(ctx->provctx, out, &outl,
+ inl + (blocksize == 1 ? 0 : blocksize),
+ in, (size_t)inl);
+ else
+ ret = ctx->cipher->cfinal(ctx->provctx, out, &outl,
+ blocksize == 1 ? 0 : blocksize);
+
+ return ret;
+ }
+
+ return ctx->cipher->do_cipher(ctx, out, in, inl);
+}
+
+const EVP_CIPHER *EVP_CIPHER_CTX_cipher(const EVP_CIPHER_CTX *ctx)
+{
+ return ctx->cipher;
+}
+
+int EVP_CIPHER_CTX_encrypting(const EVP_CIPHER_CTX *ctx)
+{
+ return ctx->encrypt;
+}
+
+unsigned long EVP_CIPHER_flags(const EVP_CIPHER *cipher)
+{
+ int ok;
+ unsigned long v = cipher->flags;
+ OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
+
+ params[0] = OSSL_PARAM_construct_ulong(OSSL_CIPHER_PARAM_FLAGS, &v);
+ ok = evp_do_ciph_getparams(cipher, params);
+
+ /* Provided implementations may have a custom cipher_cipher */
+ if (cipher->prov != NULL && cipher->ccipher != NULL)
+ v |= EVP_CIPH_FLAG_CUSTOM_CIPHER;
+
+ return ok != 0 ? v : 0;
+}
+
+void *EVP_CIPHER_CTX_get_app_data(const EVP_CIPHER_CTX *ctx)
+{
+ return ctx->app_data;
+}
+
+void EVP_CIPHER_CTX_set_app_data(EVP_CIPHER_CTX *ctx, void *data)
+{
+ ctx->app_data = data;
+}
+
+void *EVP_CIPHER_CTX_get_cipher_data(const EVP_CIPHER_CTX *ctx)
+{
+ return ctx->cipher_data;
+}
+
+void *EVP_CIPHER_CTX_set_cipher_data(EVP_CIPHER_CTX *ctx, void *cipher_data)
+{
+ void *old_cipher_data;
+
+ old_cipher_data = ctx->cipher_data;
+ ctx->cipher_data = cipher_data;
+
+ return old_cipher_data;
+}
+
+int EVP_CIPHER_iv_length(const EVP_CIPHER *cipher)
+{
+ int ok;
+ size_t v = cipher->iv_len;
+ OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
+
+ params[0] = OSSL_PARAM_construct_size_t(OSSL_CIPHER_PARAM_IVLEN, &v);
+ ok = evp_do_ciph_getparams(cipher, params);
+
+ return ok != 0 ? (int)v : EVP_CTRL_RET_UNSUPPORTED;
+}
+
+int EVP_CIPHER_CTX_iv_length(const EVP_CIPHER_CTX *ctx)
+{
+ int rv, len = EVP_CIPHER_iv_length(ctx->cipher);
+ size_t v = len;
+ OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
+
+ params[0] = OSSL_PARAM_construct_size_t(OSSL_CIPHER_PARAM_IVLEN, &v);
+ rv = evp_do_ciph_ctx_getparams(ctx->cipher, ctx->provctx, params);
+ if (rv == EVP_CTRL_RET_UNSUPPORTED)
+ goto legacy;
+ return rv != 0 ? (int)v : -1;
+ /* TODO (3.0) Remove legacy support */
+legacy:
+ if ((EVP_CIPHER_flags(ctx->cipher) & EVP_CIPH_CUSTOM_IV_LENGTH) != 0) {
+ rv = EVP_CIPHER_CTX_ctrl((EVP_CIPHER_CTX *)ctx, EVP_CTRL_GET_IVLEN,
+ 0, &len);
+ return (rv == 1) ? len : -1;
+ }
+ return len;
+}
+
+int EVP_CIPHER_CTX_tag_length(const EVP_CIPHER_CTX *ctx)
+{
+ int ret;
+ size_t v = 0;
+ OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
+
+ params[0] = OSSL_PARAM_construct_size_t(OSSL_CIPHER_PARAM_AEAD_TAGLEN, &v);
+ ret = evp_do_ciph_ctx_getparams(ctx->cipher, ctx->provctx, params);
+ return ret == 1 ? (int)v : 0;
+}
+
+const unsigned char *EVP_CIPHER_CTX_original_iv(const EVP_CIPHER_CTX *ctx)
+{
+ int ok;
+ const unsigned char *v = ctx->oiv;
+ OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
+
+ params[0] =
+ OSSL_PARAM_construct_octet_ptr(OSSL_CIPHER_PARAM_IV,
+ (void **)&v, sizeof(ctx->oiv));
+ ok = evp_do_ciph_ctx_getparams(ctx->cipher, ctx->provctx, params);
+
+ return ok != 0 ? v : NULL;
+}
+
+/*
+ * OSSL_PARAM_OCTET_PTR gets us the pointer to the running IV in the provider
+ */
+const unsigned char *EVP_CIPHER_CTX_iv(const EVP_CIPHER_CTX *ctx)
+{
+ int ok;
+ const unsigned char *v = ctx->iv;
+ OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
+
+ params[0] =
+ OSSL_PARAM_construct_octet_ptr(OSSL_CIPHER_PARAM_IV, (void **)&v,
+ sizeof(ctx->iv));
+ ok = evp_do_ciph_ctx_getparams(ctx->cipher, ctx->provctx, params);
+
+ return ok != 0 ? v : NULL;
+}
+
+unsigned char *EVP_CIPHER_CTX_iv_noconst(EVP_CIPHER_CTX *ctx)
+{
+ int ok;
+ unsigned char *v = ctx->iv;
+ OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
+
+ params[0] =
+ OSSL_PARAM_construct_octet_ptr(OSSL_CIPHER_PARAM_IV, (void **)&v,
+ sizeof(ctx->iv));
+ ok = evp_do_ciph_ctx_getparams(ctx->cipher, ctx->provctx, params);
+
+ return ok != 0 ? v : NULL;
+}
+
+unsigned char *EVP_CIPHER_CTX_buf_noconst(EVP_CIPHER_CTX *ctx)
+{
+ return ctx->buf;
+}
+
+int EVP_CIPHER_CTX_num(const EVP_CIPHER_CTX *ctx)
+{
+ int ok;
+ unsigned int v = (unsigned int)ctx->num;
+ OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
+
+ params[0] = OSSL_PARAM_construct_uint(OSSL_CIPHER_PARAM_NUM, &v);
+ ok = evp_do_ciph_ctx_getparams(ctx->cipher, ctx->provctx, params);
+
+ return ok != 0 ? (int)v : EVP_CTRL_RET_UNSUPPORTED;
+}
+
+int EVP_CIPHER_CTX_set_num(EVP_CIPHER_CTX *ctx, int num)
+{
+ int ok;
+ unsigned int n = (unsigned int)num;
+ OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
+
+ params[0] = OSSL_PARAM_construct_uint(OSSL_CIPHER_PARAM_NUM, &n);
+ ok = evp_do_ciph_ctx_setparams(ctx->cipher, ctx->provctx, params);
+
+ if (ok != 0)
+ ctx->num = (int)n;
+ return ok != 0;
+}
+
+int EVP_CIPHER_key_length(const EVP_CIPHER *cipher)
+{
+ int ok;
+ size_t v = cipher->key_len;
+ OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
+
+ params[0] = OSSL_PARAM_construct_size_t(OSSL_CIPHER_PARAM_KEYLEN, &v);
+ ok = evp_do_ciph_getparams(cipher, params);
+
+ return ok != 0 ? (int)v : EVP_CTRL_RET_UNSUPPORTED;
+}
+
+int EVP_CIPHER_CTX_key_length(const EVP_CIPHER_CTX *ctx)
+{
+ int ok;
+ size_t v = ctx->key_len;
+ OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
+
+ params[0] = OSSL_PARAM_construct_size_t(OSSL_CIPHER_PARAM_KEYLEN, &v);
+ ok = evp_do_ciph_ctx_getparams(ctx->cipher, ctx->provctx, params);
+
+ return ok != 0 ? (int)v : EVP_CTRL_RET_UNSUPPORTED;
+}
+
+int EVP_CIPHER_nid(const EVP_CIPHER *cipher)
+{
+ return cipher->nid;
+}
+
+int EVP_CIPHER_CTX_nid(const EVP_CIPHER_CTX *ctx)
+{
+ return ctx->cipher->nid;
+}
+
+int EVP_CIPHER_is_a(const EVP_CIPHER *cipher, const char *name)
+{
+#ifndef FIPS_MODE
+ if (cipher->prov == NULL) {
+ int nid = EVP_CIPHER_nid(cipher);
+
+ return nid == OBJ_sn2nid(name) || nid == OBJ_ln2nid(name);
+ }
+#endif
+ return evp_is_a(cipher->prov, cipher->name_id, name);
+}
+
+const char *EVP_CIPHER_name(const EVP_CIPHER *cipher)
+{
+ if (cipher->prov != NULL)
+ return evp_first_name(cipher->prov, cipher->name_id);
+#ifndef FIPS_MODE
+ return OBJ_nid2sn(EVP_CIPHER_nid(cipher));
+#else
+ return NULL;
+#endif
+}
+
+const OSSL_PROVIDER *EVP_CIPHER_provider(const EVP_CIPHER *cipher)
+{
+ return cipher->prov;
+}
+
+int EVP_CIPHER_mode(const EVP_CIPHER *cipher)
+{
+ int ok;
+ unsigned int v = EVP_CIPHER_flags(cipher) & EVP_CIPH_MODE;
+ OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
+
+ params[0] = OSSL_PARAM_construct_uint(OSSL_CIPHER_PARAM_MODE, &v);
+ ok = evp_do_ciph_getparams(cipher, params);
+
+ return ok != 0 ? (int)v : 0;
+}
+
+int EVP_MD_is_a(const EVP_MD *md, const char *name)
+{
+ return evp_is_a(md->prov, md->name_id, name);
+}
+
+const char *EVP_MD_name(const EVP_MD *md)
+{
+ if (md->prov != NULL)
+ return evp_first_name(md->prov, md->name_id);
+#ifndef FIPS_MODE
+ return OBJ_nid2sn(EVP_MD_nid(md));
+#else
+ return NULL;
+#endif
+}
+
+const OSSL_PROVIDER *EVP_MD_provider(const EVP_MD *md)
+{
+ return md->prov;
+}
+
+int EVP_MD_block_size(const EVP_MD *md)
+{
+ int ok;
+ size_t v = md->block_size;
+ OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
+
+ if (md == NULL) {
+ EVPerr(EVP_F_EVP_MD_BLOCK_SIZE, EVP_R_MESSAGE_DIGEST_IS_NULL);
+ return -1;
+ }
+
+ params[0] = OSSL_PARAM_construct_size_t(OSSL_DIGEST_PARAM_BLOCK_SIZE, &v);
+ ok = evp_do_md_getparams(md, params);
+
+ return ok != 0 ? (int)v : -1;
+}
+
+int EVP_MD_type(const EVP_MD *md)
+{
+ return md->type;
+}
+
+int EVP_MD_pkey_type(const EVP_MD *md)
+{
+ return md->pkey_type;
+}
+
+int EVP_MD_size(const EVP_MD *md)
+{
+ int ok;
+ size_t v = md->md_size;
+ OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
+
+ if (md == NULL) {
+ EVPerr(EVP_F_EVP_MD_SIZE, EVP_R_MESSAGE_DIGEST_IS_NULL);
+ return -1;
+ }
+
+ params[0] = OSSL_PARAM_construct_size_t(OSSL_DIGEST_PARAM_SIZE, &v);
+ ok = evp_do_md_getparams(md, params);
+
+ return ok != 0 ? (int)v : -1;
+}
+
+unsigned long EVP_MD_flags(const EVP_MD *md)
+{
+ int ok;
+ unsigned long v = md->flags;
+ OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
+
+ params[0] = OSSL_PARAM_construct_ulong(OSSL_CIPHER_PARAM_FLAGS, &v);
+ ok = evp_do_md_getparams(md, params);
+
+ return ok != 0 ? v : 0;
+}
+
+EVP_MD *EVP_MD_meth_new(int md_type, int pkey_type)
+{
+ EVP_MD *md = evp_md_new();
+
+ if (md != NULL) {
+ md->type = md_type;
+ md->pkey_type = pkey_type;
+ }
+ return md;
+}
+
+EVP_MD *EVP_MD_meth_dup(const EVP_MD *md)
+{
+ EVP_MD *to = NULL;
+
+ /*
+ * Non-legacy EVP_MDs can't be duplicated like this.
+ * Use EVP_MD_up_ref() instead.
+ */
+ if (md->prov != NULL)
+ return NULL;
+
+ if ((to = EVP_MD_meth_new(md->type, md->pkey_type)) != NULL) {
+ CRYPTO_RWLOCK *lock = to->lock;
+
+ memcpy(to, md, sizeof(*to));
+ to->lock = lock;
+ }
+ return to;
+}
+
+void EVP_MD_meth_free(EVP_MD *md)
+{
+ EVP_MD_free(md);
+}
+int EVP_MD_meth_set_input_blocksize(EVP_MD *md, int blocksize)
+{
+ if (md->block_size != 0)
+ return 0;
+
+ md->block_size = blocksize;
+ return 1;
+}
+int EVP_MD_meth_set_result_size(EVP_MD *md, int resultsize)
+{
+ if (md->md_size != 0)
+ return 0;
+
+ md->md_size = resultsize;
+ return 1;
+}
+int EVP_MD_meth_set_app_datasize(EVP_MD *md, int datasize)
+{
+ if (md->ctx_size != 0)
+ return 0;
+
+ md->ctx_size = datasize;
+ return 1;
+}
+int EVP_MD_meth_set_flags(EVP_MD *md, unsigned long flags)
+{
+ if (md->flags != 0)
+ return 0;
+
+ md->flags = flags;
+ return 1;
+}
+int EVP_MD_meth_set_init(EVP_MD *md, int (*init)(EVP_MD_CTX *ctx))
+{
+ if (md->init != NULL)
+ return 0;
+
+ md->init = init;
+ return 1;
+}
+int EVP_MD_meth_set_update(EVP_MD *md, int (*update)(EVP_MD_CTX *ctx,
+ const void *data,
+ size_t count))
+{
+ if (md->update != NULL)
+ return 0;
+
+ md->update = update;
+ return 1;
+}
+int EVP_MD_meth_set_final(EVP_MD *md, int (*final)(EVP_MD_CTX *ctx,
+ unsigned char *md))
+{
+ if (md->final != NULL)
+ return 0;
+
+ md->final = final;
+ return 1;
+}
+int EVP_MD_meth_set_copy(EVP_MD *md, int (*copy)(EVP_MD_CTX *to,
+ const EVP_MD_CTX *from))
+{
+ if (md->copy != NULL)
+ return 0;
+
+ md->copy = copy;
+ return 1;
+}
+int EVP_MD_meth_set_cleanup(EVP_MD *md, int (*cleanup)(EVP_MD_CTX *ctx))
+{
+ if (md->cleanup != NULL)
+ return 0;
+
+ md->cleanup = cleanup;
+ return 1;
+}
+int EVP_MD_meth_set_ctrl(EVP_MD *md, int (*ctrl)(EVP_MD_CTX *ctx, int cmd,
+ int p1, void *p2))
+{
+ if (md->md_ctrl != NULL)
+ return 0;
+
+ md->md_ctrl = ctrl;
+ return 1;
+}
+
+int EVP_MD_meth_get_input_blocksize(const EVP_MD *md)
+{
+ return md->block_size;
+}
+int EVP_MD_meth_get_result_size(const EVP_MD *md)
+{
+ return md->md_size;
+}
+int EVP_MD_meth_get_app_datasize(const EVP_MD *md)
+{
+ return md->ctx_size;
+}
+unsigned long EVP_MD_meth_get_flags(const EVP_MD *md)
+{
+ return md->flags;
+}
+int (*EVP_MD_meth_get_init(const EVP_MD *md))(EVP_MD_CTX *ctx)
+{
+ return md->init;
+}
+int (*EVP_MD_meth_get_update(const EVP_MD *md))(EVP_MD_CTX *ctx,
+ const void *data,
+ size_t count)
+{
+ return md->update;
+}
+int (*EVP_MD_meth_get_final(const EVP_MD *md))(EVP_MD_CTX *ctx,
+ unsigned char *md)
+{
+ return md->final;
+}
+int (*EVP_MD_meth_get_copy(const EVP_MD *md))(EVP_MD_CTX *to,
+ const EVP_MD_CTX *from)
+{
+ return md->copy;
+}
+int (*EVP_MD_meth_get_cleanup(const EVP_MD *md))(EVP_MD_CTX *ctx)
+{
+ return md->cleanup;
+}
+int (*EVP_MD_meth_get_ctrl(const EVP_MD *md))(EVP_MD_CTX *ctx, int cmd,
+ int p1, void *p2)
+{
+ return md->md_ctrl;
+}
+
+const EVP_MD *EVP_MD_CTX_md(const EVP_MD_CTX *ctx)
+{
+ if (ctx == NULL)
+ return NULL;
+ return ctx->reqdigest;
+}
+
+EVP_PKEY_CTX *EVP_MD_CTX_pkey_ctx(const EVP_MD_CTX *ctx)
+{
+ return ctx->pctx;
+}
+
+#if !defined(FIPS_MODE)
+/* TODO(3.0): EVP_DigestSign* not yet supported in FIPS module */
+void EVP_MD_CTX_set_pkey_ctx(EVP_MD_CTX *ctx, EVP_PKEY_CTX *pctx)
+{
+ /*
+ * it's reasonable to set NULL pctx (a.k.a clear the ctx->pctx), so
+ * we have to deal with the cleanup job here.
+ */
+ if (!EVP_MD_CTX_test_flags(ctx, EVP_MD_CTX_FLAG_KEEP_PKEY_CTX))
+ EVP_PKEY_CTX_free(ctx->pctx);
+
+ ctx->pctx = pctx;
+
+ if (pctx != NULL) {
+ /* make sure pctx is not freed when destroying EVP_MD_CTX */
+ EVP_MD_CTX_set_flags(ctx, EVP_MD_CTX_FLAG_KEEP_PKEY_CTX);
+ } else {
+ EVP_MD_CTX_clear_flags(ctx, EVP_MD_CTX_FLAG_KEEP_PKEY_CTX);
+ }
+}
+#endif /* !defined(FIPS_MODE) */
+
+void *EVP_MD_CTX_md_data(const EVP_MD_CTX *ctx)
+{
+ return ctx->md_data;
+}
+
+int (*EVP_MD_CTX_update_fn(EVP_MD_CTX *ctx))(EVP_MD_CTX *ctx,
+ const void *data, size_t count)
+{
+ return ctx->update;
+}
+
+void EVP_MD_CTX_set_update_fn(EVP_MD_CTX *ctx,
+ int (*update) (EVP_MD_CTX *ctx,
+ const void *data, size_t count))
+{
+ ctx->update = update;
+}
+
+void EVP_MD_CTX_set_flags(EVP_MD_CTX *ctx, int flags)
+{
+ ctx->flags |= flags;
+}
+
+void EVP_MD_CTX_clear_flags(EVP_MD_CTX *ctx, int flags)
+{
+ ctx->flags &= ~flags;
+}
+
+int EVP_MD_CTX_test_flags(const EVP_MD_CTX *ctx, int flags)
+{
+ return (ctx->flags & flags);
+}
+
+void EVP_CIPHER_CTX_set_flags(EVP_CIPHER_CTX *ctx, int flags)
+{
+ ctx->flags |= flags;
+}
+
+void EVP_CIPHER_CTX_clear_flags(EVP_CIPHER_CTX *ctx, int flags)
+{
+ ctx->flags &= ~flags;
+}
+
+int EVP_CIPHER_CTX_test_flags(const EVP_CIPHER_CTX *ctx, int flags)
+{
+ return (ctx->flags & flags);
+}
+
+int EVP_str2ctrl(int (*cb)(void *ctx, int cmd, void *buf, size_t buflen),
+ void *ctx, int cmd, const char *value)
+{
+ size_t len;
+
+ len = strlen(value);
+ if (len > INT_MAX)
+ return -1;
+ return cb(ctx, cmd, (void *)value, len);
+}
+
+int EVP_hex2ctrl(int (*cb)(void *ctx, int cmd, void *buf, size_t buflen),
+ void *ctx, int cmd, const char *hex)
+{
+ unsigned char *bin;
+ long binlen;
+ int rv = -1;
+
+ bin = OPENSSL_hexstr2buf(hex, &binlen);
+ if (bin == NULL)
+ return 0;
+ if (binlen <= INT_MAX)
+ rv = cb(ctx, cmd, bin, binlen);
+ OPENSSL_free(bin);
+ return rv;
+}