diff --git a/crypto/fipsmodule/cipher/e_des.c b/crypto/fipsmodule/cipher/e_des.c
index eaba6d7..e77363b 100644
--- a/crypto/fipsmodule/cipher/e_des.c
+++ b/crypto/fipsmodule/cipher/e_des.c
@@ -231,3 +231,7 @@
   out->init = des_ede3_init_key;
   out->cipher = des_ede_ecb_cipher;
 }
+
+const EVP_CIPHER* EVP_des_ede3_ecb(void) {
+  return EVP_des_ede3();
+}
diff --git a/decrepit/CMakeLists.txt b/decrepit/CMakeLists.txt
index 1cb5e11..501252c 100644
--- a/decrepit/CMakeLists.txt
+++ b/decrepit/CMakeLists.txt
@@ -29,8 +29,10 @@
 add_executable(
   decrepit_test
 
-  ripemd/ripemd_test.cc
+  blowfish/blowfish_test.cc
+  cast/cast_test.cc
   cfb/cfb_test.cc
+  ripemd/ripemd_test.cc
 
   $<TARGET_OBJECTS:boringssl_gtest_main>
   $<TARGET_OBJECTS:test_support>
diff --git a/decrepit/blowfish/blowfish.c b/decrepit/blowfish/blowfish.c
index 04b7368..120e365 100644
--- a/decrepit/blowfish/blowfish.c
+++ b/decrepit/blowfish/blowfish.c
@@ -55,7 +55,10 @@
  * [including the GNU Public Licence.] */
 
 #include <openssl/blowfish.h>
+#include <openssl/cipher.h>
+#include <openssl/obj.h>
 
+#include <assert.h>
 #include <string.h>
 
 #include "../../crypto/internal.h"
@@ -492,3 +495,130 @@
     p[i + 1] = in[1];
   }
 }
+
+static void BF_cfb64_encrypt(const uint8_t *in, uint8_t *out, size_t length,
+                             const BF_KEY *schedule, uint8_t *ivec, int *num,
+                             int encrypt) {
+  uint32_t v0, v1, t;
+  int n = *num;
+  size_t l = length;
+  uint32_t ti[2];
+  uint8_t c, cc;
+
+  uint8_t *iv = ivec;
+  if (encrypt) {
+    while (l--) {
+      if (n == 0) {
+        n2l(iv, v0);
+        ti[0] = v0;
+        n2l(iv, v1);
+        ti[1] = v1;
+        BF_encrypt(ti, schedule);
+        iv = ivec;
+        t = ti[0];
+        l2n(t, iv);
+        t = ti[1];
+        l2n(t, iv);
+        iv = ivec;
+      }
+      c = *(in++) ^ iv[n];
+      *(out++) = c;
+      iv[n] = c;
+      n = (n + 1) & 0x07;
+    }
+  } else {
+    while (l--) {
+      if (n == 0) {
+        n2l(iv, v0);
+        ti[0] = v0;
+        n2l(iv, v1);
+        ti[1] = v1;
+        BF_encrypt(ti, schedule);
+        iv = ivec;
+        t = ti[0];
+        l2n(t, iv);
+        t = ti[1];
+        l2n(t, iv);
+        iv = ivec;
+      }
+      cc = *(in++);
+      c = iv[n];
+      iv[n] = cc;
+      *(out++) = c ^ cc;
+      n = (n + 1) & 0x07;
+    }
+  }
+
+  *num = n;
+}
+
+static int bf_init_key(EVP_CIPHER_CTX *ctx, const uint8_t *key,
+                            const uint8_t *iv, int enc) {
+  BF_KEY *bf_key = ctx->cipher_data;
+  BF_set_key(bf_key, ctx->key_len, key);
+  return 1;
+}
+
+static int bf_ecb_cipher(EVP_CIPHER_CTX *ctx, uint8_t *out, const uint8_t *in,
+                         size_t len) {
+  BF_KEY *bf_key = ctx->cipher_data;
+
+  while (len >= BF_BLOCK) {
+    BF_ecb_encrypt(in, out, bf_key, ctx->encrypt);
+    in += BF_BLOCK;
+    out += BF_BLOCK;
+    len -= BF_BLOCK;
+  }
+  assert(len == 0);
+
+  return 1;
+}
+
+static int bf_cbc_cipher(EVP_CIPHER_CTX *ctx, uint8_t *out, const uint8_t *in,
+                         size_t len) {
+  BF_KEY *bf_key = ctx->cipher_data;
+  BF_cbc_encrypt(in, out, len, bf_key, ctx->iv, ctx->encrypt);
+  return 1;
+}
+
+static int bf_cfb_cipher(EVP_CIPHER_CTX *ctx, uint8_t *out, const uint8_t *in,
+                         size_t len) {
+  BF_KEY *bf_key = ctx->cipher_data;
+  int num = ctx->num;
+  BF_cfb64_encrypt(in, out, len, bf_key, ctx->iv, &num, ctx->encrypt);
+  ctx->num = num;
+  return 1;
+}
+
+static const EVP_CIPHER bf_ecb = {
+    NID_undef,           BF_BLOCK /* block_size */,
+    16 /* key_size */,   BF_BLOCK /* iv_len */,
+    sizeof(BF_KEY),      EVP_CIPH_ECB_MODE | EVP_CIPH_VARIABLE_LENGTH,
+    NULL /* app_data */, bf_init_key,
+    bf_ecb_cipher,       NULL /* cleanup */,
+    NULL /* ctrl */,
+};
+
+static const EVP_CIPHER bf_cbc = {
+    NID_undef,           BF_BLOCK /* block_size */,
+    16 /* key_size */,   BF_BLOCK /* iv_len */,
+    sizeof(BF_KEY),      EVP_CIPH_CBC_MODE | EVP_CIPH_VARIABLE_LENGTH,
+    NULL /* app_data */, bf_init_key,
+    bf_cbc_cipher,       NULL /* cleanup */,
+    NULL /* ctrl */,
+};
+
+static const EVP_CIPHER bf_cfb = {
+    NID_undef,           1 /* block_size */,
+    16 /* key_size */,   BF_BLOCK /* iv_len */,
+    sizeof(BF_KEY),      EVP_CIPH_CFB_MODE | EVP_CIPH_VARIABLE_LENGTH,
+    NULL /* app_data */, bf_init_key,
+    bf_cfb_cipher,       NULL /* cleanup */,
+    NULL /* ctrl */,
+};
+
+const EVP_CIPHER *EVP_bf_ecb(void) { return &bf_ecb; }
+
+const EVP_CIPHER *EVP_bf_cbc(void) { return &bf_cbc; }
+
+const EVP_CIPHER *EVP_bf_cfb(void) { return &bf_cfb; }
diff --git a/decrepit/blowfish/blowfish_test.cc b/decrepit/blowfish/blowfish_test.cc
new file mode 100644
index 0000000..d19346a
--- /dev/null
+++ b/decrepit/blowfish/blowfish_test.cc
@@ -0,0 +1,163 @@
+// Copyright (c) 2019, Google Inc.
+//
+// Permission to use, copy, modify, and/or distribute this software for any
+// purpose with or without fee is hereby granted, provided that the above
+// copyright notice and this permission notice appear in all copies.
+//
+// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+// SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+// OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+// CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+#include <openssl/cipher.h>
+
+#include <gtest/gtest.h>
+
+#include "../../crypto/internal.h"
+#include "../../crypto/test/test_util.h"
+
+struct TestCase {
+  uint8_t key[16];
+  uint8_t plaintext[16];
+  uint8_t iv[8];
+  uint8_t ecb_ciphertext[16];
+  uint8_t cbc_ciphertext[24];
+  uint8_t cfb_ciphertext[16];
+};
+
+static const TestCase kTests[] = {
+    // Randomly generated test cases. Checked against vanilla OpenSSL.
+    {
+        {0xbb, 0x56, 0xb1, 0x27, 0x7c, 0x4c, 0xdd, 0x5a, 0x99, 0x90, 0x1e, 0x6f,
+         0xeb, 0x36, 0x6c, 0xf3},
+        {0xa6, 0x5b, 0xe0, 0x99, 0xad, 0x5d, 0x91, 0x98, 0x37, 0xc1, 0xa4, 0x7f,
+         0x01, 0x24, 0x9a, 0x6b},
+        {0xd5, 0x8a, 0x5c, 0x29, 0xeb, 0xee, 0xed, 0x76},
+        {0xda, 0x6e, 0x18, 0x9c, 0x03, 0x59, 0x12, 0x61, 0xfa, 0x20, 0xd9, 0xce,
+         0xee, 0x43, 0x9d, 0x05},
+        {0x4f, 0x8b, 0x3e, 0x17, 0xa5, 0x35, 0x9b, 0xcb,
+         0xdf, 0x3c, 0x52, 0xfb, 0xe5, 0x20, 0xdd, 0x53,
+         0xd5, 0xf8, 0x1a, 0x6c, 0xf0, 0x99, 0x34, 0x94},
+        {0xfd, 0x65, 0xc5, 0xa6, 0x07, 0x07, 0xb5, 0xf3, 0x2e, 0xfb, 0x12, 0xc3,
+         0x7f, 0x45, 0x37, 0x54},
+    },
+    {
+        {0x5d, 0x98, 0xa9, 0xd2, 0x27, 0x5d, 0xc8, 0x8c, 0x8c, 0xee, 0x23, 0x7f,
+         0x8e, 0x2b, 0xd4, 0x8d},
+        {0x60, 0xec, 0x31, 0xda, 0x25, 0x07, 0x02, 0x14, 0x84, 0x44, 0x96, 0xa6,
+         0x04, 0x81, 0xca, 0x4e},
+        {0x96, 0x4c, 0xa4, 0x07, 0xee, 0x1c, 0xd1, 0xfb},
+        {0x83, 0x8a, 0xef, 0x18, 0x53, 0x96, 0xec, 0xf3, 0xf4, 0xd9, 0xe8, 0x4b,
+         0x2c, 0x3f, 0xe7, 0x27},
+        {0xad, 0x78, 0x70, 0x06, 0x2e, 0x5e, 0xa5, 0x21,
+         0xdd, 0xe8, 0xa0, 0xb9, 0xdb, 0x0c, 0x81, 0x1d,
+         0x0a, 0xd3, 0xa9, 0x63, 0x78, 0xac, 0x82, 0x64},
+        {0x43, 0x2f, 0xf3, 0x23, 0xf4, 0x5c, 0xbf, 0x05, 0x53, 0x3c, 0x9e, 0xd6,
+         0xd3, 0xd2, 0xc0, 0xf0},
+    },
+};
+
+TEST(Blowfish, ECB) {
+  unsigned test_num = 0;
+  for (const auto &test : kTests) {
+    test_num++;
+    SCOPED_TRACE(test_num);
+
+    uint8_t out[sizeof(test.ecb_ciphertext)];
+    int out_bytes, final_bytes;
+
+    bssl::ScopedEVP_CIPHER_CTX ctx;
+    ASSERT_TRUE(EVP_EncryptInit_ex(ctx.get(), EVP_bf_ecb(), nullptr, test.key,
+                                   nullptr));
+    ASSERT_TRUE(EVP_CIPHER_CTX_set_padding(ctx.get(), 0 /* no padding */));
+    ASSERT_TRUE(EVP_EncryptUpdate(ctx.get(), out, &out_bytes, test.plaintext,
+                                  sizeof(test.plaintext)));
+    ASSERT_TRUE(EVP_EncryptFinal_ex(ctx.get(), out + out_bytes, &final_bytes));
+    EXPECT_EQ(static_cast<size_t>(out_bytes + final_bytes),
+              sizeof(test.plaintext));
+    EXPECT_EQ(Bytes(test.ecb_ciphertext), Bytes(out));
+
+    bssl::ScopedEVP_CIPHER_CTX decrypt_ctx;
+    ASSERT_TRUE(EVP_DecryptInit_ex(decrypt_ctx.get(), EVP_bf_ecb(), nullptr,
+                                   test.key, nullptr));
+    ASSERT_TRUE(
+        EVP_CIPHER_CTX_set_padding(decrypt_ctx.get(), 0 /* no padding */));
+    ASSERT_TRUE(EVP_DecryptUpdate(decrypt_ctx.get(), out, &out_bytes,
+                                  test.ecb_ciphertext,
+                                  sizeof(test.ecb_ciphertext)));
+    ASSERT_TRUE(
+        EVP_DecryptFinal_ex(decrypt_ctx.get(), out + out_bytes, &final_bytes));
+    EXPECT_EQ(static_cast<size_t>(out_bytes + final_bytes),
+              sizeof(test.plaintext));
+    EXPECT_EQ(Bytes(test.plaintext), Bytes(out));
+  }
+}
+
+TEST(Blowfish, CBC) {
+  unsigned test_num = 0;
+  for (const auto &test : kTests) {
+    test_num++;
+    SCOPED_TRACE(test_num);
+
+    uint8_t out[sizeof(test.cbc_ciphertext)];
+    int out_bytes, final_bytes;
+
+    bssl::ScopedEVP_CIPHER_CTX ctx;
+    ASSERT_TRUE(EVP_EncryptInit_ex(ctx.get(), EVP_bf_cbc(), nullptr, test.key,
+                                   test.iv));
+    ASSERT_TRUE(EVP_EncryptUpdate(ctx.get(), out, &out_bytes, test.plaintext,
+                                  sizeof(test.plaintext)));
+    EXPECT_TRUE(EVP_EncryptFinal_ex(ctx.get(), out + out_bytes, &final_bytes));
+    EXPECT_EQ(static_cast<size_t>(out_bytes + final_bytes),
+              sizeof(test.cbc_ciphertext));
+    EXPECT_EQ(Bytes(test.cbc_ciphertext), Bytes(out));
+
+    bssl::ScopedEVP_CIPHER_CTX decrypt_ctx;
+    ASSERT_TRUE(EVP_DecryptInit_ex(decrypt_ctx.get(), EVP_bf_cbc(), nullptr,
+                                   test.key, test.iv));
+    ASSERT_TRUE(EVP_DecryptUpdate(decrypt_ctx.get(), out, &out_bytes,
+                                  test.cbc_ciphertext,
+                                  sizeof(test.cbc_ciphertext)));
+    EXPECT_TRUE(
+        EVP_DecryptFinal_ex(decrypt_ctx.get(), out + out_bytes, &final_bytes));
+    EXPECT_EQ(static_cast<size_t>(out_bytes + final_bytes),
+              sizeof(test.plaintext));
+    EXPECT_EQ(Bytes(test.plaintext), Bytes(out, out_bytes + final_bytes));
+  }
+}
+
+TEST(Blowfish, CFB) {
+  unsigned test_num = 0;
+  for (const auto &test : kTests) {
+    test_num++;
+    SCOPED_TRACE(test_num);
+
+    uint8_t out[sizeof(test.cfb_ciphertext)];
+    int out_bytes, final_bytes;
+
+    bssl::ScopedEVP_CIPHER_CTX ctx;
+    ASSERT_TRUE(EVP_EncryptInit_ex(ctx.get(), EVP_bf_cfb(), nullptr, test.key,
+                                   test.iv));
+    ASSERT_TRUE(EVP_EncryptUpdate(ctx.get(), out, &out_bytes, test.plaintext,
+                                  sizeof(test.plaintext)));
+    ASSERT_TRUE(EVP_EncryptFinal_ex(ctx.get(), out + out_bytes, &final_bytes));
+    EXPECT_EQ(static_cast<size_t>(out_bytes + final_bytes),
+              sizeof(test.plaintext));
+    EXPECT_EQ(Bytes(test.cfb_ciphertext), Bytes(out));
+
+    bssl::ScopedEVP_CIPHER_CTX decrypt_ctx;
+    ASSERT_TRUE(EVP_DecryptInit_ex(decrypt_ctx.get(), EVP_bf_cfb(), nullptr,
+                                   test.key, test.iv));
+    ASSERT_TRUE(EVP_DecryptUpdate(decrypt_ctx.get(), out, &out_bytes,
+                                  test.cfb_ciphertext,
+                                  sizeof(test.cfb_ciphertext)));
+    ASSERT_TRUE(
+        EVP_DecryptFinal_ex(decrypt_ctx.get(), out + out_bytes, &final_bytes));
+    EXPECT_EQ(static_cast<size_t>(out_bytes + final_bytes),
+              sizeof(test.plaintext));
+    EXPECT_EQ(Bytes(test.plaintext), Bytes(out));
+  }
+}
diff --git a/decrepit/cast/cast.c b/decrepit/cast/cast.c
index 8d80aba..0eb815d 100644
--- a/decrepit/cast/cast.c
+++ b/decrepit/cast/cast.c
@@ -55,6 +55,8 @@
  * [including the GNU Public Licence.]. */
 
 #include <openssl/cast.h>
+#include <openssl/cipher.h>
+#include <openssl/obj.h>
 
 #if defined(OPENSSL_WINDOWS)
 OPENSSL_MSVC_PRAGMA(warning(push, 3))
@@ -62,6 +64,7 @@
 OPENSSL_MSVC_PRAGMA(warning(pop))
 #endif
 
+#include "../../crypto/internal.h"
 #include "internal.h"
 #include "../macros.h"
 
@@ -406,3 +409,54 @@
   v0 = v1 = ti[0] = ti[1] = t = c = cc = 0;
   *num = n;
 }
+
+static int cast_init_key(EVP_CIPHER_CTX *ctx, const uint8_t *key,
+                         const uint8_t *iv, int enc) {
+  CAST_KEY *cast_key = ctx->cipher_data;
+  CAST_set_key(cast_key, ctx->key_len, key);
+  return 1;
+}
+
+static int cast_ecb_cipher(EVP_CIPHER_CTX *ctx, uint8_t *out, const uint8_t *in,
+                           size_t len) {
+  CAST_KEY *cast_key = ctx->cipher_data;
+
+  while (len >= CAST_BLOCK) {
+    CAST_ecb_encrypt(in, out, cast_key, ctx->encrypt);
+    in += CAST_BLOCK;
+    out += CAST_BLOCK;
+    len -= CAST_BLOCK;
+  }
+  assert(len == 0);
+
+  return 1;
+}
+
+static int cast_cbc_cipher(EVP_CIPHER_CTX *ctx, uint8_t *out, const uint8_t *in,
+                           size_t len) {
+  CAST_KEY *cast_key = ctx->cipher_data;
+  CAST_cbc_encrypt(in, out, len, cast_key, ctx->iv, ctx->encrypt);
+  return 1;
+}
+
+static const EVP_CIPHER cast5_ecb = {
+    NID_undef,           CAST_BLOCK,
+    CAST_KEY_LENGTH,     CAST_BLOCK /* iv_len */,
+    sizeof(CAST_KEY),    EVP_CIPH_ECB_MODE | EVP_CIPH_VARIABLE_LENGTH,
+    NULL /* app_data */, cast_init_key,
+    cast_ecb_cipher,     NULL /* cleanup */,
+    NULL /* ctrl */,
+};
+
+static const EVP_CIPHER cast5_cbc = {
+    NID_undef,           CAST_BLOCK,
+    CAST_KEY_LENGTH,     CAST_BLOCK /* iv_len */,
+    sizeof(CAST_KEY),    EVP_CIPH_CBC_MODE | EVP_CIPH_VARIABLE_LENGTH,
+    NULL /* app_data */, cast_init_key,
+    cast_cbc_cipher,     NULL /* cleanup */,
+    NULL /* ctrl */,
+};
+
+const EVP_CIPHER *EVP_cast5_ecb(void) { return &cast5_ecb; }
+
+const EVP_CIPHER *EVP_cast5_cbc(void) { return &cast5_cbc; }
diff --git a/decrepit/cast/cast_test.cc b/decrepit/cast/cast_test.cc
new file mode 100644
index 0000000..05a04cb
--- /dev/null
+++ b/decrepit/cast/cast_test.cc
@@ -0,0 +1,125 @@
+// Copyright (c) 2019, Google Inc.
+//
+// Permission to use, copy, modify, and/or distribute this software for any
+// purpose with or without fee is hereby granted, provided that the above
+// copyright notice and this permission notice appear in all copies.
+//
+// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+// SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+// OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+// CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+#include <openssl/cipher.h>
+
+#include <gtest/gtest.h>
+
+#include "../../crypto/internal.h"
+#include "../../crypto/test/test_util.h"
+
+struct TestCase {
+  uint8_t key[16];
+  uint8_t plaintext[16];
+  uint8_t iv[8];
+  uint8_t ecb_ciphertext[16];
+  uint8_t cbc_ciphertext[24];
+};
+
+static const TestCase kTests[] = {
+    // Randomly generated test cases. Checked against vanilla OpenSSL.
+    {
+        {0xbb, 0x56, 0xb1, 0x27, 0x7c, 0x4c, 0xdd, 0x5a, 0x99, 0x90, 0x1e, 0x6f,
+         0xeb, 0x36, 0x6c, 0xf3},
+        {0xa6, 0x5b, 0xe0, 0x99, 0xad, 0x5d, 0x91, 0x98, 0x37, 0xc1, 0xa4, 0x7f,
+         0x01, 0x24, 0x9a, 0x6b},
+        {0xd5, 0x8a, 0x5c, 0x29, 0xeb, 0xee, 0xed, 0x76},
+        {0x01, 0x8d, 0x1b, 0x42, 0xb8, 0x77, 0xc8, 0x84, 0x25, 0x7d, 0xd4, 0x89,
+         0x8d, 0xc1, 0xbc, 0x2a},
+        {0xc1, 0x05, 0xa1, 0x9a, 0xb4, 0xc4, 0xd0, 0x15,
+         0x9d, 0xfd, 0xea, 0xd0, 0xc3, 0x54, 0xe5, 0x33,
+         0x26, 0xac, 0x25, 0xf3, 0x48, 0xbc, 0xf6, 0xa2},
+    },
+    {
+        {0x5d, 0x98, 0xa9, 0xd2, 0x27, 0x5d, 0xc8, 0x8c, 0x8c, 0xee, 0x23, 0x7f,
+         0x8e, 0x2b, 0xd4, 0x8d},
+        {0x60, 0xec, 0x31, 0xda, 0x25, 0x07, 0x02, 0x14, 0x84, 0x44, 0x96, 0xa6,
+         0x04, 0x81, 0xca, 0x4e},
+        {0x96, 0x4c, 0xa4, 0x07, 0xee, 0x1c, 0xd1, 0xfb},
+        {0x58, 0x62, 0x29, 0x62, 0x23, 0x69, 0x9e, 0xe8, 0x27, 0xc2, 0xcd, 0x5b,
+         0x35, 0xf1, 0xdf, 0xa4},
+        {0x1c, 0xd0, 0x29, 0xe5, 0xf3, 0xdb, 0x65, 0x60,
+         0x05, 0xde, 0x01, 0x2b, 0x10, 0x09, 0x44, 0x56,
+         0x59, 0x44, 0x00, 0x26, 0xdb, 0xb3, 0x2d, 0x98},
+    },
+};
+
+TEST(CAST, ECB) {
+  unsigned test_num = 0;
+  for (const auto &test : kTests) {
+    test_num++;
+    SCOPED_TRACE(test_num);
+
+    uint8_t out[sizeof(test.ecb_ciphertext)];
+    int out_bytes, final_bytes;
+
+    bssl::ScopedEVP_CIPHER_CTX ctx;
+    ASSERT_TRUE(EVP_EncryptInit_ex(ctx.get(), EVP_cast5_ecb(), nullptr,
+                                   test.key, nullptr));
+    ASSERT_TRUE(EVP_CIPHER_CTX_set_padding(ctx.get(), 0 /* no padding */));
+    ASSERT_TRUE(EVP_EncryptUpdate(ctx.get(), out, &out_bytes, test.plaintext,
+                                  sizeof(test.plaintext)));
+    ASSERT_TRUE(EVP_EncryptFinal_ex(ctx.get(), out + out_bytes, &final_bytes));
+    EXPECT_EQ(static_cast<size_t>(out_bytes + final_bytes),
+              sizeof(test.plaintext));
+    EXPECT_EQ(Bytes(test.ecb_ciphertext), Bytes(out));
+
+    bssl::ScopedEVP_CIPHER_CTX decrypt_ctx;
+    ASSERT_TRUE(EVP_DecryptInit_ex(decrypt_ctx.get(), EVP_cast5_ecb(), nullptr,
+                                   test.key, nullptr));
+    ASSERT_TRUE(
+        EVP_CIPHER_CTX_set_padding(decrypt_ctx.get(), 0 /* no padding */));
+    ASSERT_TRUE(EVP_DecryptUpdate(decrypt_ctx.get(), out, &out_bytes,
+                                  test.ecb_ciphertext,
+                                  sizeof(test.ecb_ciphertext)));
+    ASSERT_TRUE(
+        EVP_DecryptFinal_ex(decrypt_ctx.get(), out + out_bytes, &final_bytes));
+    EXPECT_EQ(static_cast<size_t>(out_bytes + final_bytes),
+              sizeof(test.plaintext));
+    EXPECT_EQ(Bytes(test.plaintext), Bytes(out));
+  }
+}
+
+TEST(CAST, CBC) {
+  unsigned test_num = 0;
+  for (const auto &test : kTests) {
+    test_num++;
+    SCOPED_TRACE(test_num);
+
+    uint8_t out[sizeof(test.cbc_ciphertext)];
+    int out_bytes, final_bytes;
+
+    bssl::ScopedEVP_CIPHER_CTX ctx;
+    ASSERT_TRUE(EVP_EncryptInit_ex(ctx.get(), EVP_cast5_cbc(), nullptr,
+                                   test.key, test.iv));
+    ASSERT_TRUE(EVP_EncryptUpdate(ctx.get(), out, &out_bytes, test.plaintext,
+                                  sizeof(test.plaintext)));
+    EXPECT_TRUE(EVP_EncryptFinal_ex(ctx.get(), out + out_bytes, &final_bytes));
+    EXPECT_EQ(static_cast<size_t>(out_bytes + final_bytes),
+              sizeof(test.cbc_ciphertext));
+    EXPECT_EQ(Bytes(test.cbc_ciphertext), Bytes(out));
+
+    bssl::ScopedEVP_CIPHER_CTX decrypt_ctx;
+    ASSERT_TRUE(EVP_DecryptInit_ex(decrypt_ctx.get(), EVP_cast5_cbc(), nullptr,
+                                   test.key, test.iv));
+    ASSERT_TRUE(EVP_DecryptUpdate(decrypt_ctx.get(), out, &out_bytes,
+                                  test.cbc_ciphertext,
+                                  sizeof(test.cbc_ciphertext)));
+    EXPECT_TRUE(
+        EVP_DecryptFinal_ex(decrypt_ctx.get(), out + out_bytes, &final_bytes));
+    EXPECT_EQ(static_cast<size_t>(out_bytes + final_bytes),
+              sizeof(test.plaintext));
+    EXPECT_EQ(Bytes(test.plaintext), Bytes(out, out_bytes + final_bytes));
+  }
+}
diff --git a/include/openssl/cipher.h b/include/openssl/cipher.h
index e9545c8..ea7a940 100644
--- a/include/openssl/cipher.h
+++ b/include/openssl/cipher.h
@@ -419,9 +419,27 @@
 OPENSSL_EXPORT const EVP_CIPHER *EVP_aes_192_gcm(void);
 OPENSSL_EXPORT const EVP_CIPHER *EVP_aes_192_ofb(void);
 
+// EVP_des_ede3_ecb is an alias for |EVP_des_ede3|. Use the former instead.
+OPENSSL_EXPORT const EVP_CIPHER *EVP_des_ede3_ecb(void);
+
 // EVP_aes_128_cfb128 is only available in decrepit.
 OPENSSL_EXPORT const EVP_CIPHER *EVP_aes_128_cfb128(void);
 
+// EVP_bf_ecb is Blowfish in ECB mode and is only available in decrepit.
+OPENSSL_EXPORT const EVP_CIPHER *EVP_bf_ecb(void);
+
+// EVP_bf_cbc is Blowfish in CBC mode and is only available in decrepit.
+OPENSSL_EXPORT const EVP_CIPHER *EVP_bf_cbc(void);
+
+// EVP_bf_cfb is Blowfish in 64-bit CFB mode and is only available in decrepit.
+OPENSSL_EXPORT const EVP_CIPHER *EVP_bf_cfb(void);
+
+// EVP_cast5_ecb is CAST5 in ECB mode and is only available in decrepit.
+OPENSSL_EXPORT const EVP_CIPHER *EVP_cast5_ecb(void);
+
+// EVP_cast5_cbc is CAST5 in CBC mode and is only available in decrepit.
+OPENSSL_EXPORT const EVP_CIPHER *EVP_cast5_cbc(void);
+
 // The following flags do nothing and are included only to make it easier to
 // compile code with BoringSSL.
 #define EVP_CIPH_CCM_MODE (-1)