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password_test.go
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password_test.go
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package argonpass
import (
"encoding/base64"
"fmt"
"math"
"math/rand"
"strings"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"golang.org/x/crypto/argon2"
)
var testdata = map[string]string{
"testpass": "$argon2id$v=19$m=65536,t=10,p=4$wusfaUEXfbhsz9R3+PI9nQ==$54an1yiYbCEfTtUzE0Lb536IcyP5CGpEvsO1agp2aZQ=",
"pEVDROhl8ksT1FiZB1Nc": "$argon2id$v=19$m=65536,t=10,p=4$C75eQEesF0BbHL3wBsaaAg==$VwNdvHdQn1QMYpedCZ0o/4JX07Sh5LrfTBzTQhSXfc0=",
"8koJ3haNVVV47JWg8zQRKLtImCUgmVFg8dCS7IYtCjhLnFFfHTNXXpbZoSUEIimH": "$argon2id$v=19$m=65536,t=10,p=4$smp4HSblqVHGu1wNvPMkYA==$FCjpCngTwRefH3BT//hyLd0/q6hgbMjiBtPdqnsjL4k=",
"OEQRVj1O": "$argon2id$v=19$m=65536,t=10,p=4$rKWlclAZ1feliEaKUVe9Aw==$96ByjSgZFdvvCpJhoLxtnjTRYbAF6cyNgdnl2LdZ0gI=",
"o2s5M7gttWtX4hr6": "$argon2i$v=19$m=65536,t=5,p=4$KG6py4HoITzyOP0sOJvAAA==$ZY2gclySeV9LDcAnfU6pjbYdbw652jZVxqNBEQFWpyk=",
"7Hjxel7CkclL": "$argon2i$v=19$m=65536,t=5,p=4$BHQg8klpY8/sWcCjemdy6Q==$xHf/mMqMjsUybImONEpvGs/cOLjpd24wseATlM/woJs=",
"4mW1lMYmG2OaEmfGm2NFpRmh": "$argon2i$v=19$m=65536,t=5,p=4$MrcQyTq/if2OH2G5+YPKig==$m6zc3AIQbGZOSv3grFtlquTUXXKdyfmCvrmKJ4cQf7E=",
}
func TestHash(t *testing.T) {
// Test Short Pass
_, err := Hash("1234567", nil)
assert.EqualError(t, err, ErrPassphraseInputTooShort.Error())
// Test below min custom params
out, err := Hash("password", &ArgonParams{Function: ArgonVariant2i})
assert.NoError(t, err)
assert.Contains(t, out, "$argon2i$v=19$m=1024,t=1,p=1")
// Test above max params, should be forced to max
out, err = Hash("password", &ArgonParams{SaltSize: 100, OutputSize: 600, Function: ArgonVariant2i})
require.NoError(t, err)
part := strings.Split(out, "$")
// Get salt, check was set to max Salt Size
salt, err := base64.StdEncoding.DecodeString(part[4])
assert.NoError(t, err)
assert.Len(t, salt, maxSaltSize)
// Get argon digest, check was set to max Output Size
decodedHash, err := base64.StdEncoding.DecodeString(part[5])
assert.NoError(t, err)
assert.Len(t, decodedHash, maxOutputSize)
// Test invalid function choice
customParams := &ArgonParams{Time: 1, Memory: 16 * 1024, Parallelism: 4, OutputSize: 32, Function: "argon2b"}
hash, err := Hash("password", customParams)
assert.EqualError(t, err, ErrFunctionMismatch.Error())
assert.Empty(t, hash)
fmt.Println(" - " + t.Name() + " complete - ")
}
func TestVerify(t *testing.T) {
// Test Verify using testdata
for pass, hash := range testdata {
err := Verify(pass, hash)
require.NoErrorf(t, err, "Verification failed for pass: %s with hash: %s\n", pass, hash)
}
// Test Verify using testdata hashes and invalid passphrases
for _, hash := range testdata {
err := Verify("invalid_pass", hash)
require.EqualError(t, err, ErrHashMismatch.Error())
}
// Test Verify with bad salt
err := Verify("password", "$argon2i$v=19$m=65536,t=5,p=4$=$m6zc3AIQbGZOSv3grFtlquTUXXKdyfmCvrmKJ4cQf7E=")
require.EqualError(t, err, ErrDecodingSalt.Error())
// Test Verify with bad digest
err = Verify("password", "$argon2i$v=19$m=65536,t=5,p=4$MrcQyTq/if2OH2G5+YPKig==$=")
require.EqualError(t, err, ErrDecodingDigest.Error())
// Test Verify with bad hash string input
err = Verify("password", "$argon2id$v=19$m=65536,t=10$p=4$wusfaUEXfbhsz9R3+PI9nQ==$54an1yiYbCEfTtUzE0Lb536IcyP5CGpEvsO1agp2aZQ=")
require.EqualError(t, err, ErrInvalidHashFormat.Error())
// Test Verify with Invalid hash function
err = Verify("password", "$argon2bi$v=19$m=65536,t=10,p=4$wusfaUEXfbhsz9R3+PI9nQ==$54an1yiYbCEfTtUzE0Lb536IcyP5CGpEvsO1agp2aZQ=")
require.EqualError(t, err, ErrInvalidHashFormat.Error())
// Test Verify with Invalid version
err = Verify("password", "$argon2i$v=99$m=65536,t=10,p=4$wusfaUEXfbhsz9R3+PI9nQ==$54an1yiYbCEfTtUzE0Lb536IcyP5CGpEvsO1agp2aZQ=")
require.EqualError(t, err, ErrVersion.Error())
// Test Verify with malformed/invalid salt
err = Verify("password", "$argon2i$v=19$m=65536,t=10,p=4$wusfaUEXf@hsz9R3+PI9nQ==$54an1yiYbCEfTtUzE0Lb536IcyP5CGpEvsO1agp2aZQ=")
require.EqualError(t, err, ErrDecodingSalt.Error())
// Test Verify with malformed/invalid salt
err = Verify("password", "$argon2i$v=19$m=65536,t=5,p=4$ $m6zc3AIQbGZOSv3grFtlquTUXXKdyfmCvrmKJ4cQf7E=")
require.EqualError(t, err, ErrDecodingSalt.Error())
// Test Verify with malformed/invalid salt
err = Verify("password", "$argon2i$v=19$m=65536,t=5,p=4$MrcQyTq/if?OH2G5+YPKig==$m6zc3AIQbGZOSv3grFtlquTUXXKdyfmCvrmKJ4cQf7E=")
require.EqualError(t, err, ErrDecodingSalt.Error())
// Test Verify with malformed/invalid digest
err = Verify("password", "$argon2i$v=19$m=65536,t=10,p=4$wusfaUEXfbhsz9R3+PI9nQ==$54an1yiYbCEfTtUzE0Lb53#IcyP5CGpEvsO1agp2aZQ=")
require.EqualError(t, err, ErrDecodingDigest.Error())
require.NotNil(t, err)
// Test Verify with malformed/invalid digest
err = Verify("password", "$argon2i$v=19$m=65536,t=5,p=4$MrcQyTq/ifOH2G5+YPKig==$m6zc3AIQbGZOSv3grFtlquTUX*XKdyfmCvrmKJ4cQf7E=")
require.EqualError(t, err, ErrDecodingSalt.Error())
// Test Verify with malformed/invalid digest
err = Verify("password", "$argon2i$v=19$m=65536,t=5,p=4$MrcQyTq/ifOH2G5+YPKig==$ ")
require.EqualError(t, err, ErrDecodingSalt.Error())
fmt.Println(" - " + t.Name() + " complete - ")
}
func TestGetParams(t *testing.T) {
// Test GetParams using testdata hashes
for _, hash := range testdata {
params, err := GetParams(hash)
assert.NoError(t, err)
assert.NotZero(t, params.Memory)
assert.NotZero(t, params.Parallelism)
assert.NotZero(t, params.Time)
assert.NotZero(t, params.OutputSize)
assert.NotZero(t, params.SaltSize)
}
fmt.Println(" - " + t.Name() + " complete - ")
}
func TestCheckParams(t *testing.T) {
params := checkParams(&ArgonParams{SaltSize: 100, OutputSize: 600})
assert.EqualValues(t, maxSaltSize, params.SaltSize)
assert.EqualValues(t, maxOutputSize, params.OutputSize)
assert.EqualValues(t, minMemory, params.Memory)
assert.EqualValues(t, minTime, params.Time)
assert.EqualValues(t, minParallelism, params.Parallelism)
assert.Empty(t, params.Function)
// Check Max Parameters
params = checkParams(&ArgonParams{Parallelism: 100})
assert.EqualValues(t, maxParallelism, params.Parallelism)
}
func TestCheckHashFormat(t *testing.T) {
// Check bad hash format
err := checkHashFormat("$argon2id$v=19$m=65536,t=10$p=4$wusfaUEXfbhsz9R3+PI9nQ==$54an1yiYbCEfTtUzE0Lb536IcyP5CGpEvsO1agp2aZQ=")
assert.EqualError(t, err, ErrInvalidHashFormat.Error())
// Check valid hash format
err = checkHashFormat("$argon2id$v=19$m=65536,t=1,p=4$in2Oi1x57p0=$FopwSR12aLJ9OGPw1rKU5K5osAOGxOJzxC/shk+i850=")
assert.NoError(t, err)
fmt.Println(" - " + t.Name() + " complete - ")
}
func generateTestPassword(length int) (out string) {
charSet := "abcdedfghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890!@#$%^&*()_+?"
for i := 0; i < length; i++ {
random := rand.Intn(len(charSet))
randomChar := charSet[random]
out += string(randomChar)
}
return out
}
func TestGenerateOutputString(t *testing.T) {
// Test Data
salt, err := generateSalt(8)
require.NoError(t, err)
saltEncoded := base64.StdEncoding.EncodeToString(salt)
testpass := []byte(generateTestPassword(80))
variants := []ArgonVariant{ArgonVariant2i, ArgonVariant2id}
for _, variant := range variants {
hash, err := generateHash(testpass, salt, &ArgonParams{Time: 2, Memory: 64 * 1024, Parallelism: 4, OutputSize: 32, Function: variant})
assert.NoErrorf(t, err, "Generate hash should not fail for variant: %s", variant)
hashEncoded := base64.StdEncoding.EncodeToString(hash)
output := generateOutputString(variant, argon2.Version, 64*1024, 2, 4, saltEncoded, hashEncoded)
require.NotEmpty(t, output)
assert.NoError(t, checkHashFormat(output))
}
}
func TestGenerateHash(t *testing.T) {
// Test regeneration with expected output
salt, err := base64.StdEncoding.DecodeString("AXLonWF8MSgG515yMlIRSw==")
require.NoError(t, err)
testpass := []byte("testpass")
out, err := generateHash(testpass, salt, &ArgonParams{Time: 12, Memory: 64 * 1024, Parallelism: 4, OutputSize: 32, Function: ArgonVariant2id})
assert.NoError(t, err)
assert.EqualValues(t, "+iExTQDCJnO4fErO61zMAeC24R3utWMk8tW85saXOBU=", base64.StdEncoding.EncodeToString(out))
// Test invalid function choice
hash, err := generateHash(testpass, salt, &ArgonParams{Time: 1, Memory: 16 * 1024, Parallelism: 4, OutputSize: 32, Function: "argon2b"})
assert.EqualError(t, err, ErrFunctionMismatch.Error())
assert.Empty(t, hash)
fmt.Println(" - " + t.Name() + " complete - ")
}
func TestGenerateSalt(t *testing.T) {
// Generate random salts from minSaltSize to maxSaltSize
for i := minSaltSize; i < maxSaltSize; i++ {
expectedLen := i
salt, err := generateSalt(uint8(expectedLen))
assert.NoError(t, err)
assert.Len(t, salt, expectedLen)
}
}
func TestHashAndVerify(t *testing.T) {
// Hash & Verify various lengths from 8 chars up to 256 chars with default params
for i := 8; i < 256; i *= 8 {
pass := generateTestPassword(80)
out, err := Hash(pass, nil)
assert.NoError(t, err)
assert.NotEmpty(t, out)
err = Verify(pass, out)
assert.NoError(t, err)
}
// Hash & Verify with Custom Params
for i := 8; i < 256; i *= 8 {
pass := generateTestPassword(80)
out, err := Hash(pass, &ArgonParams{Time: 12, Memory: 64 * 1024, Parallelism: 4, OutputSize: 32, Function: "argon2id"})
assert.NoError(t, err)
assert.NotEmpty(t, out)
err = Verify(pass, out)
assert.NoError(t, err)
}
fmt.Println(" - " + t.Name() + " complete - ")
}
func TestParseParams(t *testing.T) {
expected := &ArgonParams{
Time: 2,
Memory: 65536,
Parallelism: 4,
}
params, err := parseParams("m=65536,t=2,p=4")
require.NoError(t, err)
assert.Equal(t, expected, params)
// Test with bad params, these should not happen in regular use since these would fail regex
_, err = parseParams("m=65.536,t=2,p=4")
require.EqualError(t, err, ErrParseMemory.Error())
_, err = parseParams("m=65536,t=2b,p=4")
require.EqualError(t, err, ErrParseTime.Error())
_, err = parseParams("m=65536,t=2,p=4h")
require.EqualError(t, err, ErrParseParallelism.Error())
// Test out of bounds integers
_, err = parseParams(fmt.Sprintf("m=%d,t=2,p=4", math.MaxUint32+1000))
assert.EqualError(t, err, ErrParseMemory.Error())
_, err = parseParams(fmt.Sprintf("m=65536,t=%d,p=4", math.MaxUint32+10000))
assert.EqualError(t, err, ErrParseTime.Error())
_, err = parseParams(fmt.Sprintf("m=65536,t=2,p=%d", math.MaxUint8+10000))
assert.EqualError(t, err, ErrParseParallelism.Error())
fmt.Println(" - " + t.Name() + " complete - ")
}
func TestBenchmark(t *testing.T) {
var count int
var totalDuration float64
for totalDuration < 3 {
singleDuration, err := Benchmark(NewDefaultParams())
assert.NoError(t, err)
totalDuration += singleDuration
count++
}
assert.NotZero(t, count)
assert.NotZero(t, totalDuration)
fmt.Printf("%v runs in %.2f seconds, or %.2f/second\n", count, totalDuration, float64(count)/totalDuration)
fmt.Println(" - " + t.Name() + " complete - ")
}
func BenchmarkHash(b *testing.B) {
for i := 0; i < b.N; i++ {
_, _ = Hash("testpass", nil) // nolint:errcheck // ignore for benchmark
}
}