67 lines
2.0 KiB
Go
67 lines
2.0 KiB
Go
package authentication
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import (
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"errors"
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)
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// Level is the type representing a level of authentication.
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type Level int
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const (
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// NotAuthenticated if the user is not authenticated yet.
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NotAuthenticated Level = iota
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// OneFactor if the user has passed first factor only.
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OneFactor Level = iota
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// TwoFactor if the user has passed two factors.
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TwoFactor Level = iota
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)
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const (
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// TOTP Method using Time-Based One-Time Password applications like Google Authenticator.
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TOTP = "totp"
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// U2F Method using U2F devices like Yubikeys.
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U2F = "u2f"
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// Push Method using Duo application to receive push notifications.
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Push = "mobile_push"
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)
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// PossibleMethods is the set of all possible 2FA methods.
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var PossibleMethods = []string{TOTP, U2F, Push}
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// CryptAlgo the crypt representation of an algorithm used in the prefix of the hash.
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type CryptAlgo string
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const (
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// HashingAlgorithmArgon2id Argon2id hash identifier.
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HashingAlgorithmArgon2id CryptAlgo = argon2id
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// HashingAlgorithmSHA512 SHA512 hash identifier.
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HashingAlgorithmSHA512 CryptAlgo = "6"
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)
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// These are the default values from the upstream crypt module we use them to for GetInt
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// and they need to be checked when updating github.com/simia-tech/crypt.
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const (
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HashingDefaultArgon2idTime = 1
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HashingDefaultArgon2idMemory = 32 * 1024
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HashingDefaultArgon2idParallelism = 4
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HashingDefaultArgon2idKeyLength = 32
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HashingDefaultSHA512Iterations = 5000
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)
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// HashingPossibleSaltCharacters represents valid hashing runes.
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var HashingPossibleSaltCharacters = []rune("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789+/")
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// ErrUserNotFound indicates the user wasn't found in the authentication backend.
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var ErrUserNotFound = errors.New("user not found")
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const argon2id = "argon2id"
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const sha512 = "sha512"
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const testPassword = "my;secure*password"
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const fileAuthenticationMode = 0600
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// OWASP recommends to escape some special characters.
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// https://github.com/OWASP/CheatSheetSeries/blob/master/cheatsheets/LDAP_Injection_Prevention_Cheat_Sheet.md
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const specialLDAPRunes = ",#+<>;\"="
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