feat: add totp login API (#416)

* fix:
* removed hasReversedValue in playground

* feat:
* added totp methods in db's providers
* adding totp in login method

* feat:
* added toggle in dashboard
* fixing issue with env set

* feat:
* integrated totp

* feat:
* encrypted userid
* added totp_verified column in user table
* started test for totp

* feat:
* test cases totp

* test-cases:
* completed test cases
* tested for all dbs

* fixes:
* return variable to snake case
* import refactoring

* feat:
* created seperate folder for authenticator with totp subfolder
* refactored code
* created new table for authenticators
* added recovery code for totp

* feat:
* adding functions to different db providers

* feat:
* added authenticators method for all db

* feat:
* added logic for updating mfa in user_profile update

* fix:
* merge conflict

* fix:
* resolved mongodb, dynamodb and arangodb test case bug
* added new condition for checking first time totp user or not

* feat:
* changes in all respective db with authenticator

* fix:
* PR suggested changes

* fix(cassandra): list users

* Update verify otp

* fix totp login api

---------

Co-authored-by: lemonScaletech <anand.panigrahi@scaletech.xyz>

server/crypto/rsa.go

@@ -3,7 +3,9 @@ package crypto
 import (
 	"crypto/rand"
 	"crypto/rsa"
+	"crypto/sha256"
 	"crypto/x509"
+	"encoding/base64"
 	"encoding/pem"
 	"errors"
 )
@@ -116,3 +118,24 @@ func AsRSAStr(privateKey *rsa.PrivateKey, publickKey *rsa.PublicKey) (string, st
 
 	return privParsedPem, pubParsedPem, nil
 }
+
+func EncryptRSA(message string, key rsa.PublicKey) (string, error) {
+	label := []byte("OAEP Encrypted")
+	rng := rand.Reader
+	ciphertext, err := rsa.EncryptOAEP(sha256.New(), rng, &key, []byte(message), label)
+	if err != nil {
+		return "", err
+	}
+	return base64.StdEncoding.EncodeToString(ciphertext), nil
+}
+
+func DecryptRSA(cipherText string, privateKey rsa.PrivateKey) (string, error) {
+	ct, _ := base64.StdEncoding.DecodeString(cipherText)
+	label := []byte("OAEP Encrypted")
+	rng := rand.Reader
+	plaintext, err := rsa.DecryptOAEP(sha256.New(), rng, &privateKey, ct, label)
+	if err != nil {
+		return "", err
+	}
+	return string(plaintext), nil
+}