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WIP integrating experimental WANDERER alg

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This commit is contained in:
Russ Magee 2019-09-27 09:44:57 -07:00
parent d542e4949e
commit e58572ebb5
4 changed files with 16 additions and 12 deletions
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1
hkexnet/consts.go
View file

@ -95,6 +95,7 @@ const (
CAlgTwofish128 // golang.org/x/crypto/twofish
CAlgBlowfish64 // golang.org/x/crypto/blowfish
CAlgCryptMT1 //cryptmt using mtwist64
CAlgWanderer // inhouse experimental crypto alg
CAlgNoneDisallowed
)

13
hkexnet/hkexchan.go
View file

@ -20,9 +20,11 @@ import (
"hash"
"log"
"blitter.com/go/cryptmt"
"blitter.com/go/wanderer"
"golang.org/x/crypto/blowfish"
"golang.org/x/crypto/twofish"
"blitter.com/go/cryptmt"
// hash algos must be manually imported thusly:
// (Would be nice if the golang pkg docs were more clear
// on this...)
@ -75,7 +77,6 @@ func (hc Conn) getStream(keymat []byte) (rc cipher.Stream, mc hash.Hash, err err
iv = keymat[aes.BlockSize : aes.BlockSize+ivlen]
rc = cipher.NewOFB(block, iv)
log.Printf("[cipher AES_256 (%d)]\n", copts)
break
case CAlgTwofish128:
keymat = expandKeyMat(keymat, twofish.BlockSize)
key = keymat[0:twofish.BlockSize]
@ -84,7 +85,6 @@ func (hc Conn) getStream(keymat []byte) (rc cipher.Stream, mc hash.Hash, err err
iv = keymat[twofish.BlockSize : twofish.BlockSize+ivlen]
rc = cipher.NewOFB(block, iv)
log.Printf("[cipher TWOFISH_128 (%d)]\n", copts)
break
case CAlgBlowfish64:
keymat = expandKeyMat(keymat, blowfish.BlockSize)
key = keymat[0:blowfish.BlockSize]
@ -102,11 +102,12 @@ func (hc Conn) getStream(keymat []byte) (rc cipher.Stream, mc hash.Hash, err err
iv = keymat[blowfish.BlockSize : blowfish.BlockSize+ivlen]
rc = cipher.NewOFB(block, iv)
log.Printf("[cipher BLOWFISH_64 (%d)]\n", copts)
break
case CAlgCryptMT1:
rc = cryptmt.NewCipher(keymat)
log.Printf("[cipher CRYPTMT1 (%d)]\n", copts)
break
case CAlgWanderer:
rc = wanderer.NewCodec(nil, nil, keymat, 3, 3)
log.Printf("[cipher WANDERER (%d)]\n", copts)
default:
log.Printf("[invalid cipher (%d)]\n", copts)
fmt.Printf("DOOFUS SET A VALID CIPHER ALG (%d)\n", copts)
@ -123,7 +124,6 @@ func (hc Conn) getStream(keymat []byte) (rc cipher.Stream, mc hash.Hash, err err
if !halg.Available() {
log.Fatal("hash not available!")
}
break
case HmacSHA512:
log.Printf("[hash HmacSHA512 (%d)]\n", hopts)
halg := crypto.SHA512
@ -131,7 +131,6 @@ func (hc Conn) getStream(keymat []byte) (rc cipher.Stream, mc hash.Hash, err err
if !halg.Available() {
log.Fatal("hash not available!")
}
break
default:
log.Printf("[invalid hmac (%d)]\n", hopts)
fmt.Printf("DOOFUS SET A VALID HMAC ALG (%d)\n", hopts)

4
hkexnet/hkexnet.go
View file

@ -258,6 +258,10 @@ func (hc *Conn) applyConnExtensions(extensions ...string) {
log.Println("[extension arg = C_CRYPTMT1]")
hc.cipheropts &= (0xFFFFFF00)
hc.cipheropts |= CAlgCryptMT1
case "C_WANDERER":
log.Println("[extension arg = C_WANDERER]")
hc.cipheropts &= (0xFFFFFF00)
hc.cipheropts |= CAlgWanderer
case "H_SHA256":
log.Println("[extension arg = H_SHA256]")
hc.cipheropts &= (0xFFFF00FF)