Add compatibility functions for OpenSSH.

Change-Id: I2fcb67fea859220e7e7bbbdb5dd910fb847c5600

8 files changed, 51 insertions, 0 deletions

diff --git a/src/crypto/ec/ec.c b/src/crypto/ec/ec.c
index 30def15..7d16f2c 100644
--- a/src/crypto/ec/ec.c
+++ b/src/crypto/ec/ec.c
@@ -853,3 +853,13 @@ int ec_point_set_Jprojective_coordinates_GFp(const EC_GROUP *group, EC_POINT *po
   return group->meth->point_set_Jprojective_coordinates_GFp(group, point, x, y,
                                                             z, ctx);
 }
+
+void EC_GROUP_set_asn1_flag(EC_GROUP *group, int flag) {}
+
+const EC_METHOD *EC_GROUP_method_of(const EC_GROUP *group) {
+  return NULL;
+}
+
+int EC_METHOD_get_field_type(const EC_METHOD *meth) {
+  return NID_X9_62_prime_field;
+}
diff --git a/src/crypto/ec/ec_key.c b/src/crypto/ec/ec_key.c
index c8f0624..471ea9c 100644
--- a/src/crypto/ec/ec_key.c
+++ b/src/crypto/ec/ec_key.c
@@ -514,3 +514,5 @@ int EC_KEY_set_ex_data(EC_KEY *d, int idx, void *arg) {
 void *EC_KEY_get_ex_data(const EC_KEY *d, int idx) {
   return CRYPTO_get_ex_data(&d->ex_data, idx);
 }
+
+void EC_KEY_set_asn1_flag(EC_KEY *key, int flag) {}
diff --git a/src/crypto/rand/rand.c b/src/crypto/rand/rand.c
index 6780b6c..efd6c0a 100644
--- a/src/crypto/rand/rand.c
+++ b/src/crypto/rand/rand.c
@@ -26,3 +26,7 @@ void RAND_add(const void *buf, int num, double entropy) {}
 int RAND_poll(void) {
   return 1;
 }
+
+int RAND_status(void) {
+  return 1;
+}
diff --git a/src/crypto/rsa/rsa.c b/src/crypto/rsa/rsa.c
index cfdd7ff..66002cc 100644
--- a/src/crypto/rsa/rsa.c
+++ b/src/crypto/rsa/rsa.c
@@ -759,3 +759,7 @@ int RSA_private_transform(RSA *rsa, uint8_t *out, const uint8_t *in,
 
   return RSA_default_method.private_transform(rsa, out, in, len);
 }
+
+int RSA_blinding_on(RSA *rsa, BN_CTX *ctx) {
+  return 1;
+}
diff --git a/src/include/openssl/ec.h b/src/include/openssl/ec.h
index eb9a153..d266653 100644
--- a/src/include/openssl/ec.h
+++ b/src/include/openssl/ec.h
@@ -288,6 +288,22 @@ OPENSSL_EXPORT int EC_POINTs_mul(const EC_GROUP *group, EC_POINT *r,
                                  BN_CTX *ctx);
 
 
+/* Deprecated functions. */
+
+/* EC_GROUP_set_asn1_flag does nothing. */
+OPENSSL_EXPORT void EC_GROUP_set_asn1_flag(EC_GROUP *group, int flag);
+
+#define OPENSSL_EC_NAMED_CURVE 0
+
+typedef struct ec_method_st EC_METHOD;
+
+/* EC_GROUP_method_of returns NULL. */
+OPENSSL_EXPORT const EC_METHOD *EC_GROUP_method_of(const EC_GROUP *group);
+
+/* EC_METHOD_get_field_type returns NID_X9_62_prime_field. */
+OPENSSL_EXPORT int EC_METHOD_get_field_type(const EC_METHOD *meth);
+
+
 /* Old code expects to get EC_KEY from ec.h. */
 #if !defined(OPENSSL_HEADER_EC_KEY_H)
 #include <openssl/ec_key.h>
diff --git a/src/include/openssl/ec_key.h b/src/include/openssl/ec_key.h
index d659216..115c0cd 100644
--- a/src/include/openssl/ec_key.h
+++ b/src/include/openssl/ec_key.h
@@ -273,6 +273,12 @@ struct ecdsa_method_st {
 };
 
 
+/* Deprecated functions. */
+
+/* EC_KEY_set_asn1_flag does nothing. */
+OPENSSL_EXPORT void EC_KEY_set_asn1_flag(EC_KEY *key, int flag);
+
+
 #if defined(__cplusplus)
 }  /* extern C */
 #endif
diff --git a/src/include/openssl/rand.h b/src/include/openssl/rand.h
index 5a84a89..6186044 100644
--- a/src/include/openssl/rand.h
+++ b/src/include/openssl/rand.h
@@ -45,6 +45,9 @@ OPENSSL_EXPORT void RAND_add(const void *buf, int num, double entropy);
 /* RAND_poll returns one. */
 OPENSSL_EXPORT int RAND_poll(void);
 
+/* RAND_status returns one. */
+OPENSSL_EXPORT int RAND_status(void);
+
 
 #if defined(__cplusplus)
 }  /* extern C */
diff --git a/src/include/openssl/rsa.h b/src/include/openssl/rsa.h
index 5f39e0b..a4596c7 100644
--- a/src/include/openssl/rsa.h
+++ b/src/include/openssl/rsa.h
@@ -389,6 +389,12 @@ OPENSSL_EXPORT void *RSA_get_ex_data(const RSA *r, int idx);
 #define RSA_F4 0x10001
 
 
+/* Deprecated functions. */
+
+/* RSA_blinding_on returns one. */
+OPENSSL_EXPORT int RSA_blinding_on(RSA *rsa, BN_CTX *ctx);
+
+
 struct rsa_meth_st {
   struct openssl_method_common_st common;