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authorDamien Miller <djm@mindrot.org>2013-12-07 11:24:01 +1100
committerDamien Miller <djm@mindrot.org>2013-12-07 11:24:01 +1100
commit5be9d9e3cbd9c66f24745d25bf2e809c1d158ee0 (patch)
treed2086d37436014ea44f0f024396a1a8638640b00 /verify.c
parentbcd00abd8451f36142ae2ee10cc657202149201e (diff)
- markus@cvs.openbsd.org 2013/12/06 13:39:49
[authfd.c authfile.c key.c key.h myproposal.h pathnames.h readconf.c] [servconf.c ssh-agent.c ssh-keygen.c ssh-keyscan.1 ssh-keyscan.c] [ssh-keysign.c ssh.c ssh_config.5 sshd.8 sshd.c verify.c ssh-ed25519.c] [sc25519.h sc25519.c hash.c ge25519_base.data ge25519.h ge25519.c] [fe25519.h fe25519.c ed25519.c crypto_api.h blocks.c] support ed25519 keys (hostkeys and user identities) using the public domain ed25519 reference code from SUPERCOP, see http://ed25519.cr.yp.to/software.html feedback, help & ok djm@
Diffstat (limited to 'verify.c')
-rw-r--r--verify.c44
1 files changed, 44 insertions, 0 deletions
diff --git a/verify.c b/verify.c
new file mode 100644
index 00000000..943e606b
--- /dev/null
+++ b/verify.c
@@ -0,0 +1,44 @@
+/* $OpenBSD: */
+
+/* Public Domain, from supercop-20130419/crypto_verify/32/ref/verify.c */
+
+#include "crypto_api.h"
+
+int crypto_verify_32(const unsigned char *x,const unsigned char *y)
+{
+ unsigned int differentbits = 0;
+#define F(i) differentbits |= x[i] ^ y[i];
+ F(0)
+ F(1)
+ F(2)
+ F(3)
+ F(4)
+ F(5)
+ F(6)
+ F(7)
+ F(8)
+ F(9)
+ F(10)
+ F(11)
+ F(12)
+ F(13)
+ F(14)
+ F(15)
+ F(16)
+ F(17)
+ F(18)
+ F(19)
+ F(20)
+ F(21)
+ F(22)
+ F(23)
+ F(24)
+ F(25)
+ F(26)
+ F(27)
+ F(28)
+ F(29)
+ F(30)
+ F(31)
+ return (1 & ((differentbits - 1) >> 8)) - 1;
+}