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Merged
bodgit merged 2 commits into from
Mar 29, 2026
Merged

test: Add tests for computeM1 and computeM2 #23

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811ea1d
Add tests for computeM1 and computeM2
davidspiess Mar 25, 2026
6227252
Update test.go
bodgit Mar 29, 2026
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15 changes: 15 additions & 0 deletions internal/rfc2945/test.go
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Original file line number Diff line number Diff line change
@@ -0,0 +1,15 @@
// Package rfc2945 provides test vectors documented in
// RFC 2945.
//
//nolint:gochecknoglobals
package rfc2945

import "github.com/bodgit/srp/internal/util"

// RFC 2945 SRP Test Vectors.
var (
M1 = util.Must(util.BytesFromHexString(`
3F3BC671 69EA7130 2599CF1B 0F5D408B 7B65D347`))
M2 = util.Must(util.BytesFromHexString(`
9CAB3C57 5A11DE37 D3AC1421 A9F00923 6A48EB55`))
)
21 changes: 21 additions & 0 deletions srp_internal_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,7 @@ import (
"math/big"
"testing"

"github.com/bodgit/srp/internal/rfc2945"
"github.com/bodgit/srp/internal/rfc5054"
"github.com/bodgit/srp/internal/util"
"github.com/stretchr/testify/assert"
Expand Down Expand Up @@ -145,3 +146,23 @@ func TestSRP_computeServerS(t *testing.T) {
new(big.Int).SetBytes(rfc5054.U),
new(big.Int).SetBytes(rfc5054.V)).Bytes())
}

func TestSRP_computeM1(t *testing.T) {
t.Parallel()

assert.Equal(t, rfc2945.M1, newSRP().computeM1(
new(big.Int).SetBytes(rfc5054.XA),
new(big.Int).SetBytes(rfc5054.XB),
newSRP().computeK(new(big.Int).SetBytes(rfc5054.PremasterSecret)),
rfc5054.Identity,
rfc5054.Salt))
}

func TestSRP_computeM2(t *testing.T) {
t.Parallel()

assert.Equal(t, rfc2945.M2, newSRP().computeM2(
new(big.Int).SetBytes(rfc5054.XA),
rfc2945.M1,
newSRP().computeK(new(big.Int).SetBytes(rfc5054.PremasterSecret))))
}
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