Add |EVP_des_ecb| from OpenSSL at fd682e4c.

|DES_ecb_encrypt| was already present.

This benefits globalplatform.

Change-Id: I2ab41eb1936b3026439b5981fb27e29a12672b66
Reviewed-on: https://boringssl-review.googlesource.com/5723
Reviewed-by: Adam Langley <agl@google.com>

1 files changed, 24 insertions, 0 deletions

diff --git a/src/crypto/cipher/e_des.c b/src/crypto/cipher/e_des.c
index 74e1fce..d7bef92 100644
--- a/src/crypto/cipher/e_des.c
+++ b/src/crypto/cipher/e_des.c
@@ -96,6 +96,30 @@ static const EVP_CIPHER des_cbc = {
 const EVP_CIPHER *EVP_des_cbc(void) { return &des_cbc; }
 
 
+static int des_ecb_cipher(EVP_CIPHER_CTX *ctx, uint8_t *out, const uint8_t *in,
+                          size_t in_len) {
+  if (in_len < ctx->cipher->block_size) {
+    return 1;
+  }
+  in_len -= ctx->cipher->block_size;
+
+  EVP_DES_KEY *dat = (EVP_DES_KEY *) ctx->cipher_data;
+  for (size_t i = 0; i <= in_len; i += ctx->cipher->block_size) {
+    DES_ecb_encrypt((DES_cblock *) (in + i), (DES_cblock *) (out + i),
+                    &dat->ks.ks, ctx->encrypt);
+  }
+  return 1;
+}
+
+static const EVP_CIPHER des_ecb = {
+    NID_des_ecb,         8 /* block_size */,  8 /* key_size */,
+    0 /* iv_len */,      sizeof(EVP_DES_KEY), EVP_CIPH_ECB_MODE,
+    NULL /* app_data */, des_init_key,        des_ecb_cipher,
+    NULL /* cleanup */,  NULL /* ctrl */, };
+
+const EVP_CIPHER *EVP_des_ecb(void) { return &des_ecb; }
+
+
 typedef struct {
   union {
     double align;