Add rc5 ciphers to default provider

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10006)

4 files changed, 210 insertions, 0 deletions

diff --git a/providers/default/ciphers/build.info b/providers/default/ciphers/build.info
index 76a5135aac..a42a31325e 100644
--- a/providers/default/ciphers/build.info
+++ b/providers/default/ciphers/build.info
@@ -55,4 +55,9 @@ IF[{- !$disabled{rc4} -}]
       cipher_rc4.c cipher_rc4_hw.c
 ENDIF
 
+IF[{- !$disabled{rc5} -}]
+  SOURCE[../../../libcrypto]=\
+      cipher_rc5.c cipher_rc5_hw.c
+ENDIF
+
 INCLUDE[../../../libcrypto]=. ../../../crypto
diff --git a/providers/default/ciphers/cipher_rc5.c b/providers/default/ciphers/cipher_rc5.c
new file mode 100644
index 0000000000..645a6b8b64
--- /dev/null
+++ b/providers/default/ciphers/cipher_rc5.c
@@ -0,0 +1,145 @@
+/*
+ * Copyright 2019 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License 2.0 (the "License").  You may not use
+ * this file except in compliance with the License.  You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+/* Dispatch functions for RC5 cipher modes ecb, cbc, ofb, cfb */
+
+#include "cipher_rc5.h"
+#include "internal/provider_algs.h"
+#include "internal/providercommonerr.h"
+
+static OSSL_OP_cipher_freectx_fn rc5_freectx;
+static OSSL_OP_cipher_dupctx_fn rc5_dupctx;
+OSSL_OP_cipher_gettable_ctx_params_fn rc5_gettable_ctx_params;
+OSSL_OP_cipher_settable_ctx_params_fn rc5_settable_ctx_params;
+
+static void rc5_freectx(void *vctx)
+{
+    PROV_RC5_CTX *ctx = (PROV_RC5_CTX *)vctx;
+
+    OPENSSL_clear_free(ctx,  sizeof(*ctx));
+}
+
+static void *rc5_dupctx(void *ctx)
+{
+    PROV_RC5_CTX *in = (PROV_RC5_CTX *)ctx;
+    PROV_RC5_CTX *ret = OPENSSL_malloc(sizeof(*ret));
+
+    if (ret == NULL) {
+        ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE);
+        return NULL;
+    }
+    *ret = *in;
+
+    return ret;
+}
+
+static int rc5_set_ctx_params(void *vctx, const OSSL_PARAM params[])
+{
+    PROV_RC5_CTX *ctx = (PROV_RC5_CTX *)vctx;
+    const OSSL_PARAM *p;
+
+    if (!cipher_generic_set_ctx_params(vctx, params))
+        return 0;
+
+    p = OSSL_PARAM_locate_const(params, OSSL_CIPHER_PARAM_ROUNDS);
+    if (p != NULL) {
+        unsigned int rounds;
+
+        if (!OSSL_PARAM_get_uint(p, &rounds)) {
+            ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_GET_PARAMETER);
+            return 0;
+        }
+        if (rounds != RC5_8_ROUNDS
+            && rounds != RC5_12_ROUNDS
+            && rounds != RC5_16_ROUNDS) {
+            ERR_raise(ERR_LIB_PROV, PROV_R_UNSUPPORTED_NUMBER_OF_ROUNDS);
+            return 0;
+        }
+        ctx->rounds = rounds;
+    }
+    return 1;
+}
+
+CIPHER_DEFAULT_GETTABLE_CTX_PARAMS_START(rc5)
+    OSSL_PARAM_uint(OSSL_CIPHER_PARAM_ROUNDS, NULL),
+CIPHER_DEFAULT_GETTABLE_CTX_PARAMS_END(rc5)
+
+CIPHER_DEFAULT_SETTABLE_CTX_PARAMS_START(rc5)
+    OSSL_PARAM_uint(OSSL_CIPHER_PARAM_ROUNDS, NULL),
+CIPHER_DEFAULT_SETTABLE_CTX_PARAMS_END(rc5)
+
+
+static int rc5_get_ctx_params(void *vctx, OSSL_PARAM params[])
+{
+    PROV_RC5_CTX *ctx = (PROV_RC5_CTX *)vctx;
+    OSSL_PARAM *p;
+
+    if (!cipher_generic_get_ctx_params(vctx, params))
+        return 0;
+    p = OSSL_PARAM_locate(params, OSSL_CIPHER_PARAM_ROUNDS);
+    if (p != NULL && !OSSL_PARAM_set_uint(p, ctx->rounds)) {
+        ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_SET_PARAMETER);
+        return 0;
+    }
+    return 1;
+}
+
+#define IMPLEMENT_cipher(alg, UCALG, lcmode, UCMODE, flags, kbits,             \
+                         blkbits, ivbits, typ)                                 \
+static OSSL_OP_cipher_get_params_fn alg##_##kbits##_##lcmode##_get_params;     \
+static int alg##_##kbits##_##lcmode##_get_params(OSSL_PARAM params[])          \
+{                                                                              \
+    return cipher_generic_get_params(params, EVP_CIPH_##UCMODE##_MODE, flags,  \
+                                     kbits, blkbits, ivbits);                  \
+}                                                                              \
+static OSSL_OP_cipher_newctx_fn alg##_##kbits##_##lcmode##_newctx;             \
+static void * alg##_##kbits##_##lcmode##_newctx(void *provctx)                 \
+{                                                                              \
+     PROV_##UCALG##_CTX *ctx = OPENSSL_zalloc(sizeof(*ctx));                   \
+     if (ctx != NULL) {                                                        \
+         cipher_generic_initkey(ctx, kbits, blkbits, ivbits,                   \
+                                EVP_CIPH_##UCMODE##_MODE, flags,               \
+                                PROV_CIPHER_HW_##alg##_##lcmode(kbits), NULL); \
+         ctx->rounds = RC5_12_ROUNDS;                                          \
+     }                                                                         \
+     return ctx;                                                               \
+}                                                                              \
+const OSSL_DISPATCH alg##kbits##lcmode##_functions[] = {                       \
+    { OSSL_FUNC_CIPHER_NEWCTX,                                                 \
+      (void (*)(void)) alg##_##kbits##_##lcmode##_newctx },                    \
+    { OSSL_FUNC_CIPHER_FREECTX, (void (*)(void)) alg##_freectx },              \
+    { OSSL_FUNC_CIPHER_DUPCTX, (void (*)(void)) alg##_dupctx },                \
+    { OSSL_FUNC_CIPHER_ENCRYPT_INIT, (void (*)(void))cipher_generic_einit },   \
+    { OSSL_FUNC_CIPHER_DECRYPT_INIT, (void (*)(void))cipher_generic_dinit },   \
+    { OSSL_FUNC_CIPHER_UPDATE, (void (*)(void))cipher_generic_##typ##_update },\
+    { OSSL_FUNC_CIPHER_FINAL, (void (*)(void))cipher_generic_##typ##_final },  \
+    { OSSL_FUNC_CIPHER_CIPHER, (void (*)(void))cipher_generic_cipher },        \
+    { OSSL_FUNC_CIPHER_GET_PARAMS,                                             \
+      (void (*)(void)) alg##_##kbits##_##lcmode##_get_params },                \
+    { OSSL_FUNC_CIPHER_GETTABLE_PARAMS,                                        \
+      (void (*)(void))cipher_generic_gettable_params },                        \
+    { OSSL_FUNC_CIPHER_GET_CTX_PARAMS,                                         \
+      (void (*)(void))rc5_get_ctx_params },                                    \
+    { OSSL_FUNC_CIPHER_GETTABLE_CTX_PARAMS,                                    \
+      (void (*)(void))rc5_gettable_ctx_params },                               \
+    { OSSL_FUNC_CIPHER_SET_CTX_PARAMS,                                         \
+      (void (*)(void))rc5_set_ctx_params },                                    \
+    { OSSL_FUNC_CIPHER_SETTABLE_CTX_PARAMS,                                    \
+     (void (*)(void))rc5_settable_ctx_params },                                \
+    { 0, NULL }                                                                \
+};
+
+/* rc5128ecb_functions */
+IMPLEMENT_cipher(rc5, RC5, ecb, ECB, EVP_CIPH_VARIABLE_LENGTH, 128, 64, 0, block)
+/* rc5128cbc_functions */
+IMPLEMENT_cipher(rc5, RC5, cbc, CBC, EVP_CIPH_VARIABLE_LENGTH, 128, 64, 64, block)
+/* rc5128ofb64_functions */
+IMPLEMENT_cipher(rc5, RC5, ofb64, OFB, EVP_CIPH_VARIABLE_LENGTH, 128, 8, 64, stream)
+/* rc5128cfb64_functions */
+IMPLEMENT_cipher(rc5, RC5, cfb64,  CFB, EVP_CIPH_VARIABLE_LENGTH, 128, 8, 64, stream)
diff --git a/providers/default/ciphers/cipher_rc5.h b/providers/default/ciphers/cipher_rc5.h
new file mode 100644
index 0000000000..c415e18c59
--- /dev/null
+++ b/providers/default/ciphers/cipher_rc5.h
@@ -0,0 +1,25 @@
+/*
+ * Copyright 2019 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License 2.0 (the "License").  You may not use
+ * this file except in compliance with the License.  You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#include <openssl/rc5.h>
+#include "internal/ciphers/ciphercommon.h"
+
+typedef struct prov_blowfish_ctx_st {
+    PROV_CIPHER_CTX base;      /* Must be first */
+    union {
+        OSSL_UNION_ALIGN;
+        RC5_32_KEY ks;         /* key schedule */
+    } ks;
+    unsigned int rounds;       /* number of rounds */
+} PROV_RC5_CTX;
+
+const PROV_CIPHER_HW *PROV_CIPHER_HW_rc5_cbc(size_t keybits);
+const PROV_CIPHER_HW *PROV_CIPHER_HW_rc5_ecb(size_t keybits);
+const PROV_CIPHER_HW *PROV_CIPHER_HW_rc5_ofb64(size_t keybits);
+const PROV_CIPHER_HW *PROV_CIPHER_HW_rc5_cfb64(size_t keybits);
diff --git a/providers/default/ciphers/cipher_rc5_hw.c b/providers/default/ciphers/cipher_rc5_hw.c
new file mode 100644
index 0000000000..a9a05ba32f
--- /dev/null
+++ b/providers/default/ciphers/cipher_rc5_hw.c
@@ -0,0 +1,35 @@
+/*
+ * Copyright 2019 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License 2.0 (the "License").  You may not use
+ * this file except in compliance with the License.  You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#include "cipher_rc5.h"
+
+static int cipher_hw_rc5_initkey(PROV_CIPHER_CTX *ctx,
+                                 const unsigned char *key, size_t keylen)
+{
+    PROV_RC5_CTX *rctx = (PROV_RC5_CTX *)ctx;
+
+    return RC5_32_set_key(&rctx->ks.ks, keylen, key, rctx->rounds);
+}
+
+# define PROV_CIPHER_HW_rc5_mode(mode, UCMODE)                                 \
+IMPLEMENT_CIPHER_HW_##UCMODE(mode, rc5, PROV_RC5_CTX, RC5_32_KEY,              \
+                             RC5_32_##mode)                                    \
+static const PROV_CIPHER_HW rc5_##mode = {                                     \
+    cipher_hw_rc5_initkey,                                                     \
+    cipher_hw_rc5_##mode##_cipher                                              \
+};                                                                             \
+const PROV_CIPHER_HW *PROV_CIPHER_HW_rc5_##mode(size_t keybits)                \
+{                                                                              \
+    return &rc5_##mode;                                                        \
+}
+
+PROV_CIPHER_HW_rc5_mode(cbc, CBC)
+PROV_CIPHER_HW_rc5_mode(ecb, ECB)
+PROV_CIPHER_HW_rc5_mode(ofb64, OFB)
+PROV_CIPHER_HW_rc5_mode(cfb64, CFB)