-/* $OpenBSD: e_idea.c,v 1.11 2022/09/03 20:12:24 jsing Exp $ */
+/* $OpenBSD: e_idea.c,v 1.12 2022/09/04 08:57:32 jsing Exp $ */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
idea_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
const unsigned char *in, size_t inl)
{
- BLOCK_CIPHER_ecb_loop()
+ size_t i, bl;
+
+ bl = ctx->cipher->block_size;
+
+ if (inl < bl)
+ return 1;
+
+ inl -= bl;
+
+ for (i = 0; i <= inl; i += bl)
idea_ecb_encrypt(in + i, out + i, ctx->cipher_data);
return 1;
}
IDEA_KEY_SCHEDULE ks;
} EVP_IDEA_KEY;
-BLOCK_CIPHER_func_cbc(idea, idea, EVP_IDEA_KEY, ks)
-BLOCK_CIPHER_func_ofb(idea, idea, 64, EVP_IDEA_KEY, ks)
-BLOCK_CIPHER_func_cfb(idea, idea, 64, EVP_IDEA_KEY, ks)
+static int
+idea_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl)
+{
+ while (inl >= EVP_MAXCHUNK) {
+ idea_cbc_encrypt(in, out, (long)EVP_MAXCHUNK, &((EVP_IDEA_KEY *)ctx->cipher_data)->ks, ctx->iv, ctx->encrypt);
+ inl -= EVP_MAXCHUNK;
+ in += EVP_MAXCHUNK;
+ out += EVP_MAXCHUNK;
+ }
+
+ if (inl)
+ idea_cbc_encrypt(in, out, (long)inl, &((EVP_IDEA_KEY *)ctx->cipher_data)->ks, ctx->iv, ctx->encrypt);
+
+ return 1;
+}
+
+static int
+idea_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl)
+{
+ while (inl >= EVP_MAXCHUNK) {
+ idea_ofb64_encrypt(in, out, (long)EVP_MAXCHUNK, &((EVP_IDEA_KEY *)ctx->cipher_data)->ks, ctx->iv, &ctx->num);
+ inl -= EVP_MAXCHUNK;
+ in += EVP_MAXCHUNK;
+ out += EVP_MAXCHUNK;
+ }
+
+ if (inl)
+ idea_ofb64_encrypt(in, out, (long)inl, &((EVP_IDEA_KEY *)ctx->cipher_data)->ks, ctx->iv, &ctx->num);
+
+ return 1;
+}
+
+static int
+idea_cfb64_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl)
+{
+ size_t chunk = EVP_MAXCHUNK;
+
+ if (64 == 1)
+ chunk >>= 3;
+
+ if (inl < chunk)
+ chunk = inl;
+
+ while (inl && inl >= chunk) {
+ idea_cfb64_encrypt(in, out, (long)((64 == 1) && !(ctx->flags & EVP_CIPH_FLAG_LENGTH_BITS) ? inl * 8 : inl), &((EVP_IDEA_KEY *)ctx->cipher_data)->ks, ctx->iv, &ctx->num, ctx->encrypt);
+ inl -= chunk;
+ in += chunk;
+ out += chunk;
+ if (inl < chunk)
+ chunk = inl;
+ }
+
+ return 1;
+}
+
+
+static const EVP_CIPHER idea_cbc = {
+ .nid = NID_idea_cbc,
+ .block_size = 8,
+ .key_len = 16,
+ .iv_len = 8,
+ .flags = 0 | EVP_CIPH_CBC_MODE,
+ .init = idea_init_key,
+ .do_cipher = idea_cbc_cipher,
+ .cleanup = NULL,
+ .ctx_size = sizeof(IDEA_KEY_SCHEDULE),
+ .set_asn1_parameters = EVP_CIPHER_set_asn1_iv,
+ .get_asn1_parameters = EVP_CIPHER_get_asn1_iv,
+ .ctrl = NULL,
+ .app_data = NULL,
+};
+
+const EVP_CIPHER *
+EVP_idea_cbc(void)
+{
+ return &idea_cbc;
+}
+
+static const EVP_CIPHER idea_cfb64 = {
+ .nid = NID_idea_cfb64,
+ .block_size = 1,
+ .key_len = 16,
+ .iv_len = 8,
+ .flags = 0 | EVP_CIPH_CFB_MODE,
+ .init = idea_init_key,
+ .do_cipher = idea_cfb64_cipher,
+ .cleanup = NULL,
+ .ctx_size = sizeof(IDEA_KEY_SCHEDULE),
+ .set_asn1_parameters = EVP_CIPHER_set_asn1_iv,
+ .get_asn1_parameters = EVP_CIPHER_get_asn1_iv,
+ .ctrl = NULL,
+ .app_data = NULL,
+};
+
+const EVP_CIPHER *
+EVP_idea_cfb64(void)
+{
+ return &idea_cfb64;
+}
+
+static const EVP_CIPHER idea_ofb = {
+ .nid = NID_idea_ofb64,
+ .block_size = 1,
+ .key_len = 16,
+ .iv_len = 8,
+ .flags = 0 | EVP_CIPH_OFB_MODE,
+ .init = idea_init_key,
+ .do_cipher = idea_ofb_cipher,
+ .cleanup = NULL,
+ .ctx_size = sizeof(IDEA_KEY_SCHEDULE),
+ .set_asn1_parameters = EVP_CIPHER_set_asn1_iv,
+ .get_asn1_parameters = EVP_CIPHER_get_asn1_iv,
+ .ctrl = NULL,
+ .app_data = NULL,
+};
+
+const EVP_CIPHER *
+EVP_idea_ofb(void)
+{
+ return &idea_ofb;
+}
+
+static const EVP_CIPHER idea_ecb = {
+ .nid = NID_idea_ecb,
+ .block_size = 8,
+ .key_len = 16,
+ .iv_len = 0,
+ .flags = 0 | EVP_CIPH_ECB_MODE,
+ .init = idea_init_key,
+ .do_cipher = idea_ecb_cipher,
+ .cleanup = NULL,
+ .ctx_size = sizeof(IDEA_KEY_SCHEDULE),
+ .set_asn1_parameters = EVP_CIPHER_set_asn1_iv,
+ .get_asn1_parameters = EVP_CIPHER_get_asn1_iv,
+ .ctrl = NULL,
+ .app_data = NULL,
+};
+
+const EVP_CIPHER *
+EVP_idea_ecb(void)
+{
+ return &idea_ecb;
+}
-BLOCK_CIPHER_defs(idea, IDEA_KEY_SCHEDULE, NID_idea, 8, 16, 8, 64,
- 0, idea_init_key, NULL,
- EVP_CIPHER_set_asn1_iv, EVP_CIPHER_get_asn1_iv, NULL)
static int
idea_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,