removing (outdated) drawterm

drawterm is much better maintained by russ cox,
so removing this outdated copy.

for a more recent version, go to:

http://swtch.com/drawterm/

1 files changed, 0 insertions, 37 deletions

diff --git a/sys/src/cmd/unix/drawterm/libsec/rsadecrypt.c b/sys/src/cmd/unix/drawterm/libsec/rsadecrypt.c
deleted file mode 100644
index 1e937bec8..000000000
--- a/sys/src/cmd/unix/drawterm/libsec/rsadecrypt.c
+++ /dev/null
@@ -1,37 +0,0 @@
-#include "os.h"
-#include <mp.h>
-#include <libsec.h>
-
-// decrypt rsa using garner's algorithm for the chinese remainder theorem
-//	seminumerical algorithms, knuth, pp 253-254
-//	applied cryptography, menezes et al, pg 612
-mpint*
-rsadecrypt(RSApriv *rsa, mpint *in, mpint *out)
-{
-	mpint *v1, *v2;
-
-	if(out == nil)
-		out = mpnew(0);
-
-	// convert in to modular representation
-	v1 = mpnew(0);
-	mpmod(in, rsa->p, v1);
-	v2 = mpnew(0);
-	mpmod(in, rsa->q, v2);
-
-	// exponentiate the modular rep
-	mpexp(v1, rsa->kp, rsa->p, v1);
-	mpexp(v2, rsa->kq, rsa->q, v2);
-	
-	// out = v1 + p*((v2-v1)*c2 mod q)
-	mpsub(v2, v1, v2);
-	mpmul(v2, rsa->c2, v2);
-	mpmod(v2, rsa->q, v2);
-	mpmul(v2, rsa->p, out);
-	mpadd(v1, out, out);
-
-	mpfree(v1);
-	mpfree(v2);
-
-	return out;
-}