diff --git a/crypto/base64/base64.c b/crypto/base64/base64.c
index 3d92059..6ce6007 100644
--- a/crypto/base64/base64.c
+++ b/crypto/base64/base64.c
@@ -122,6 +122,19 @@
   return 1;
 }
 
+EVP_ENCODE_CTX *EVP_ENCODE_CTX_new(void) {
+  EVP_ENCODE_CTX *ret = OPENSSL_malloc(sizeof(EVP_ENCODE_CTX));
+  if (ret == NULL) {
+    return NULL;
+  }
+  OPENSSL_memset(ret, 0, sizeof(EVP_ENCODE_CTX));
+  return ret;
+}
+
+void EVP_ENCODE_CTX_free(EVP_ENCODE_CTX *ctx) {
+  OPENSSL_free(ctx);
+}
+
 void EVP_EncodeInit(EVP_ENCODE_CTX *ctx) {
   OPENSSL_memset(ctx, 0, sizeof(EVP_ENCODE_CTX));
 }
diff --git a/crypto/dsa/dsa.c b/crypto/dsa/dsa.c
index c869568..8e77ea3 100644
--- a/crypto/dsa/dsa.c
+++ b/crypto/dsa/dsa.c
@@ -550,6 +550,27 @@
   OPENSSL_free(sig);
 }
 
+void DSA_SIG_get0(const DSA_SIG *sig, const BIGNUM **out_r,
+                  const BIGNUM **out_s) {
+  if (out_r != NULL) {
+    *out_r = sig->r;
+  }
+  if (out_s != NULL) {
+    *out_s = sig->s;
+  }
+}
+
+int DSA_SIG_set0(DSA_SIG *sig, BIGNUM *r, BIGNUM *s) {
+  if (r == NULL || s == NULL) {
+    return 0;
+  }
+  BN_free(sig->r);
+  BN_free(sig->s);
+  sig->r = r;
+  sig->s = s;
+  return 1;
+}
+
 // mod_mul_consttime sets |r| to |a| * |b| modulo |mont->N|, treating |a| and
 // |b| as secret. This function internally uses Montgomery reduction, but
 // neither inputs nor outputs are in Montgomery form.
diff --git a/crypto/fipsmodule/cipher/cipher.c b/crypto/fipsmodule/cipher/cipher.c
index 51c96b4..64ee544 100644
--- a/crypto/fipsmodule/cipher/cipher.c
+++ b/crypto/fipsmodule/cipher/cipher.c
@@ -629,6 +629,18 @@
   return EVP_CipherInit(ctx, cipher, key, iv, 0);
 }
 
+int EVP_CipherFinal(EVP_CIPHER_CTX *ctx, uint8_t *out, int *out_len) {
+  return EVP_CipherFinal_ex(ctx, out, out_len);
+}
+
+int EVP_EncryptFinal(EVP_CIPHER_CTX *ctx, uint8_t *out, int *out_len) {
+  return EVP_EncryptFinal_ex(ctx, out, out_len);
+}
+
+int EVP_DecryptFinal(EVP_CIPHER_CTX *ctx, uint8_t *out, int *out_len) {
+  return EVP_DecryptFinal_ex(ctx, out, out_len);
+}
+
 int EVP_add_cipher_alias(const char *a, const char *b) {
   return 1;
 }
diff --git a/include/openssl/base64.h b/include/openssl/base64.h
index c88546d..369ba9c 100644
--- a/include/openssl/base64.h
+++ b/include/openssl/base64.h
@@ -111,6 +111,14 @@
 // very specific to PEM. It is also very lenient of invalid input. Use of any of
 // these functions is thus deprecated.
 
+// EVP_ENCODE_CTX_new returns a newly-allocated |EVP_ENCODE_CTX| or NULL on
+// error. The caller must release the result with |EVP_ENCODE_CTX_free|  when
+// done.
+OPENSSL_EXPORT EVP_ENCODE_CTX *EVP_ENCODE_CTX_new(void);
+
+// EVP_ENCODE_CTX_free releases memory associated with |ctx|.
+OPENSSL_EXPORT void EVP_ENCODE_CTX_free(EVP_ENCODE_CTX *ctx);
+
 // EVP_EncodeInit initialises |*ctx|, which is typically stack
 // allocated, for an encoding operation.
 //
diff --git a/include/openssl/cipher.h b/include/openssl/cipher.h
index 09d72ec..2458847 100644
--- a/include/openssl/cipher.h
+++ b/include/openssl/cipher.h
@@ -201,7 +201,7 @@
 //
 // WARNING: it is unsafe to call this function with unauthenticated
 // ciphertext if padding is enabled.
-OPENSSL_EXPORT int EVP_DecryptFinal_ex(EVP_CIPHER_CTX *ctx, unsigned char *out,
+OPENSSL_EXPORT int EVP_DecryptFinal_ex(EVP_CIPHER_CTX *ctx, uint8_t *out,
                                        int *out_len);
 
 // EVP_Cipher performs a one-shot encryption/decryption operation. No partial
@@ -408,6 +408,18 @@
                                    const EVP_CIPHER *cipher, const uint8_t *key,
                                    const uint8_t *iv);
 
+// EVP_CipherFinal calls |EVP_CipherFinal_ex|.
+OPENSSL_EXPORT int EVP_CipherFinal(EVP_CIPHER_CTX *ctx, uint8_t *out,
+                                   int *out_len);
+
+// EVP_EncryptFinal calls |EVP_EncryptFinal_ex|.
+OPENSSL_EXPORT int EVP_EncryptFinal(EVP_CIPHER_CTX *ctx, uint8_t *out,
+                                    int *out_len);
+
+// EVP_DecryptFinal calls |EVP_DecryptFinal_ex|.
+OPENSSL_EXPORT int EVP_DecryptFinal(EVP_CIPHER_CTX *ctx, uint8_t *out,
+                                    int *out_len);
+
 // EVP_add_cipher_alias does nothing and returns one.
 OPENSSL_EXPORT int EVP_add_cipher_alias(const char *a, const char *b);
 
diff --git a/include/openssl/dsa.h b/include/openssl/dsa.h
index 1665251..e6ddce6 100644
--- a/include/openssl/dsa.h
+++ b/include/openssl/dsa.h
@@ -189,6 +189,16 @@
 // DSA_SIG_free frees the contents of |sig| and then frees |sig| itself.
 OPENSSL_EXPORT void DSA_SIG_free(DSA_SIG *sig);
 
+// DSA_SIG_get0 sets |*out_r| and |*out_s|, if non-NULL, to the two components
+// of |sig|.
+OPENSSL_EXPORT void DSA_SIG_get0(const DSA_SIG *sig, const BIGNUM **out_r,
+                                 const BIGNUM **out_s);
+
+// DSA_SIG_set0 sets |sig|'s components to |r| and |s|, neither of which may be
+// NULL. On success, it takes ownership of each argument and returns one.
+// Otherwise, it returns zero.
+OPENSSL_EXPORT int DSA_SIG_set0(DSA_SIG *sig, BIGNUM *r, BIGNUM *s);
+
 // DSA_do_sign returns a signature of the hash in |digest| by the key in |dsa|
 // and returns an allocated, DSA_SIG structure, or NULL on error.
 OPENSSL_EXPORT DSA_SIG *DSA_do_sign(const uint8_t *digest, size_t digest_len,