Import sources from 2011-03-30 iso image

1 files changed, 45 insertions, 0 deletions

diff --git a/sys/src/cmd/ssh/cipherrc4.c b/sys/src/cmd/ssh/cipherrc4.c
new file mode 100755
index 000000000..5b41f0d23
--- /dev/null
+++ b/sys/src/cmd/ssh/cipherrc4.c
@@ -0,0 +1,45 @@
+#include "ssh.h"
+
+struct CipherState
+{
+	RC4state enc;
+	RC4state dec;
+};
+
+static CipherState*
+initrc4(Conn *c, int isserver)
+{
+	CipherState *cs;
+
+	cs = emalloc(sizeof(CipherState));
+	if(isserver){
+		setupRC4state(&cs->enc, c->sesskey, 16);
+		setupRC4state(&cs->dec, c->sesskey+16, 16);
+	}else{
+		setupRC4state(&cs->dec, c->sesskey, 16);
+		setupRC4state(&cs->enc, c->sesskey+16, 16);
+	}
+	return cs;
+}
+
+static void
+encryptrc4(CipherState *cs, uchar *buf, int nbuf)
+{
+	rc4(&cs->enc, buf, nbuf);
+}
+
+static void
+decryptrc4(CipherState *cs, uchar *buf, int nbuf)
+{
+	rc4(&cs->dec, buf, nbuf);
+}
+
+Cipher cipherrc4 =
+{
+	SSH_CIPHER_RC4,
+	"rc4",
+	initrc4,
+	encryptrc4,
+	decryptrc4,
+};
+