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-rw-r--r--src/pubkey/rsa/rsa.cpp121
1 files changed, 0 insertions, 121 deletions
diff --git a/src/pubkey/rsa/rsa.cpp b/src/pubkey/rsa/rsa.cpp
deleted file mode 100644
index 199ce6ad8..000000000
--- a/src/pubkey/rsa/rsa.cpp
+++ /dev/null
@@ -1,121 +0,0 @@
-/*
-* RSA
-* (C) 1999-2010 Jack Lloyd
-*
-* Distributed under the terms of the Botan license
-*/
-
-#include <botan/rsa.h>
-#include <botan/parsing.h>
-#include <botan/numthry.h>
-#include <botan/keypair.h>
-#include <future>
-
-namespace Botan {
-
-/*
-* Create a RSA private key
-*/
-RSA_PrivateKey::RSA_PrivateKey(RandomNumberGenerator& rng,
- size_t bits, size_t exp)
- {
- if(bits < 1024)
- throw Invalid_Argument(algo_name() + ": Can't make a key that is only " +
- std::to_string(bits) + " bits long");
- if(exp < 3 || exp % 2 == 0)
- throw Invalid_Argument(algo_name() + ": Invalid encryption exponent");
-
- e = exp;
-
- do
- {
- p = random_prime(rng, (bits + 1) / 2, e);
- q = random_prime(rng, bits - p.bits(), e);
- n = p * q;
- } while(n.bits() != bits);
-
- d = inverse_mod(e, lcm(p - 1, q - 1));
- d1 = d % (p - 1);
- d2 = d % (q - 1);
- c = inverse_mod(q, p);
-
- gen_check(rng);
- }
-
-/*
-* Check Private RSA Parameters
-*/
-bool RSA_PrivateKey::check_key(RandomNumberGenerator& rng, bool strong) const
- {
- if(!IF_Scheme_PrivateKey::check_key(rng, strong))
- return false;
-
- if(!strong)
- return true;
-
- if((e * d) % lcm(p - 1, q - 1) != 1)
- return false;
-
- return KeyPair::signature_consistency_check(rng, *this, "EMSA4(SHA-1)");
- }
-
-RSA_Private_Operation::RSA_Private_Operation(const RSA_PrivateKey& rsa,
- RandomNumberGenerator& rng) :
- n(rsa.get_n()),
- q(rsa.get_q()),
- c(rsa.get_c()),
- powermod_e_n(rsa.get_e(), rsa.get_n()),
- powermod_d1_p(rsa.get_d1(), rsa.get_p()),
- powermod_d2_q(rsa.get_d2(), rsa.get_q()),
- mod_p(rsa.get_p())
- {
- BigInt k(rng, n.bits() - 1);
- blinder = Blinder(powermod_e_n(k), inverse_mod(k, n), n);
- }
-
-BigInt RSA_Private_Operation::private_op(const BigInt& m) const
- {
- if(m >= n)
- throw Invalid_Argument("RSA private op - input is too large");
-
- auto future_j1 = std::async(std::launch::async, powermod_d1_p, m);
- BigInt j2 = powermod_d2_q(m);
- BigInt j1 = future_j1.get();
-
- j1 = mod_p.reduce(sub_mul(j1, j2, c));
-
- return mul_add(j1, q, j2);
- }
-
-secure_vector<byte>
-RSA_Private_Operation::sign(const byte msg[], size_t msg_len,
- RandomNumberGenerator& rng)
- {
- rng.add_entropy(msg, msg_len);
-
- /* We don't check signatures against powermod_e_n here because
- PK_Signer checks verification consistency for all signature
- algorithms.
- */
-
- const BigInt m(msg, msg_len);
- const BigInt x = blinder.unblind(private_op(blinder.blind(m)));
- return BigInt::encode_1363(x, n.bytes());
- }
-
-/*
-* RSA Decryption Operation
-*/
-secure_vector<byte>
-RSA_Private_Operation::decrypt(const byte msg[], size_t msg_len)
- {
- const BigInt m(msg, msg_len);
- const BigInt x = blinder.unblind(private_op(blinder.blind(m)));
-
- BOTAN_ASSERT(m == powermod_e_n(x),
- "RSA decrypt passed consistency check");
-
- return BigInt::encode_locked(x);
- }
-
-}