Provide RSA_bits()

ok jsing

3 files changed, 10 insertions, 2 deletions

diff --git a/src/lib/libcrypto/Symbols.list b/src/lib/libcrypto/Symbols.list
index ab4c8593d7..8f18580b55 100644
--- a/src/lib/libcrypto/Symbols.list
+++ b/src/lib/libcrypto/Symbols.list
@@ -2203,6 +2203,7 @@ RSA_PSS_PARAMS_free
 RSA_PSS_PARAMS_it
 RSA_PSS_PARAMS_new
 RSA_X931_hash_id
+RSA_bits
 RSA_blinding_off
 RSA_blinding_on
 RSA_check_key
diff --git a/src/lib/libcrypto/rsa/rsa.h b/src/lib/libcrypto/rsa/rsa.h
index 7d4bd838c5..7e28a8766c 100644
--- a/src/lib/libcrypto/rsa/rsa.h
+++ b/src/lib/libcrypto/rsa/rsa.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: rsa.h,v 1.32 2018/02/17 13:47:36 tb Exp $ */
+/* $OpenBSD: rsa.h,v 1.33 2018/02/18 12:52:13 tb Exp $ */
 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
@@ -256,6 +256,7 @@ struct rsa_st {
 
 RSA *RSA_new(void);
 RSA *RSA_new_method(ENGINE *engine);
+int RSA_bits(const RSA *rsa);
 int RSA_size(const RSA *rsa);
 
 /* Deprecated version */
diff --git a/src/lib/libcrypto/rsa/rsa_crpt.c b/src/lib/libcrypto/rsa/rsa_crpt.c
index f0c925602f..a646ded4a7 100644
--- a/src/lib/libcrypto/rsa/rsa_crpt.c
+++ b/src/lib/libcrypto/rsa/rsa_crpt.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: rsa_crpt.c,v 1.18 2017/01/29 17:49:23 beck Exp $ */
+/* $OpenBSD: rsa_crpt.c,v 1.19 2018/02/18 12:52:13 tb Exp $ */
 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
@@ -73,6 +73,12 @@
 #endif
 
 int
+RSA_bits(const RSA *r)
+{
+        return BN_num_bits(r->n);
+}
+
+int
 RSA_size(const RSA *r)
 {
         return BN_num_bytes(r->n);