Use random IV for ECIES AES

arkpar · arkpar · commit 2be44de9bf00 · 2016-08-17T21:03:30.000+02:00
diff --git a/util/src/crypto.rs b/util/src/crypto.rs
@@ -334,9 +334,11 @@ pub mod ecies {
 		{
 			let msgd = &mut msg[1..];
 			r.public().copy_to(&mut msgd[0..64]);
+			let iv = H128::random();
+			iv.copy_to(&mut msgd[64..(64+16)]);
 			{
 				let cipher = &mut msgd[(64 + 16)..(64 + 16 + plain.len())];
-				aes::encrypt(ekey, &H128::new(), plain, cipher);
+				aes::encrypt(ekey, &iv, plain, cipher);
 			}
 			let mut hmac = Hmac::new(Sha256::new(), &mkey);
 			{

Original file line number	Diff line number	Diff line change
`@@ -334,9 +334,11 @@ pub mod ecies {`
`334`	`334`	`{`
`335`	`335`	`let msgd = &mut msg[1..];`
`336`	`336`	`r.public().copy_to(&mut msgd[0..64]);`
	`337`	`+ let iv = H128::random();`
	`338`	`+ iv.copy_to(&mut msgd[64..(64+16)]);`
`337`	`339`	`{`
`338`	`340`	`let cipher = &mut msgd[(64 + 16)..(64 + 16 + plain.len())];`
`339`		`- aes::encrypt(ekey, &H128::new(), plain, cipher);`
	`341`	`+ aes::encrypt(ekey, &iv, plain, cipher);`
`340`	`342`	`}`
`341`	`343`	`let mut hmac = Hmac::new(Sha256::new(), &mkey);`
`342`	`344`	`{`