feat: sdk migration in progress

internal/auth/hash.go

@@ -0,0 +1,38 @@
+package auth
+
+import (
+	"crypto/sha256"
+	"encoding/hex"
+	"errors"
+	"time"
+
+	"github.com/alexedwards/argon2id"
+)
+
+func SHA256Hex(s string) string {
+	sum := sha256.Sum256([]byte(s))
+	return hex.EncodeToString(sum[:])
+}
+
+var argonParams = &argon2id.Params{
+	Memory:      64 * 1024, // 64MB
+	Iterations:  3,
+	Parallelism: 2,
+	SaltLength:  16,
+	KeyLength:   32,
+}
+
+func HashSecretArgon2id(plain string) (string, error) {
+	return argon2id.CreateHash(plain, argonParams)
+}
+
+func VerifySecretArgon2id(encodedHash, plain string) (bool, error) {
+	if encodedHash == "" {
+		return false, errors.New("empty hash")
+	}
+	return argon2id.ComparePasswordAndHash(plain, encodedHash)
+}
+
+func NotExpired(expiresAt *time.Time) bool {
+	return expiresAt == nil || time.Now().Before(*expiresAt)
+}