Initial QSfera import

Server/vendor/github.com/alexedwards/argon2id/LICENSE

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+MIT License
+
+Copyright (c) 2018 Alex Edwards
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

Server/vendor/github.com/alexedwards/argon2id/README.md

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+# Argon2id
+
+This package provides a convenience wrapper around Go's [argon2](https://pkg.go.dev/golang.org/x/crypto/argon2?tab=doc) implementation, making it simpler to securely hash and verify passwords using Argon2.
+
+It enforces use of the Argon2id algorithm variant and cryptographically-secure random salts.
+
+## Usage
+
+```go
+package main
+
+import (
+	"log"
+
+	"github.com/alexedwards/argon2id"
+)
+
+func main() {
+	// CreateHash returns a Argon2id hash of a plain-text password using the
+	// provided algorithm parameters. The returned hash follows the format used
+	// by the Argon2 reference C implementation and looks like this:
+	// $argon2id$v=19$m=65536,t=3,p=2$c29tZXNhbHQ$RdescudvJCsgt3ub+b+dWRWJTmaaJObG
+	hash, err := argon2id.CreateHash("pa$$word", argon2id.DefaultParams)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	// ComparePasswordAndHash performs a constant-time comparison between a
+	// plain-text password and Argon2id hash, using the parameters and salt
+	// contained in the hash. It returns true if they match, otherwise it returns
+	// false.
+	match, err := argon2id.ComparePasswordAndHash("pa$$word", hash)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	log.Printf("Match: %v", match)
+}
+```
+
+### Changing the Parameters
+
+When creating a hash you can and should configure the parameters to be suitable for the environment that the code is running in. The parameters are:
+
+* Memory — The amount of memory used by the Argon2 algorithm (in kibibytes).
+* Iterations — The number of iterations (or passes) over the memory.
+* Parallelism — The number of threads (or lanes) used by the algorithm.
+* Salt length — Length of the random salt. 16 bytes is recommended for password hashing.
+* Key length — Length of the generated key (or password hash). 16 bytes or more is recommended.
+
+The Memory and Iterations parameters control the computational cost of hashing the password. The higher these figures are, the greater the cost of generating the hash and the longer the runtime. It also follows that the greater the cost will be for any attacker trying to guess the password.
+
+If the code is running on a machine with multiple cores, then you can decrease the runtime without reducing the cost by increasing the Parallelism parameter. This controls the number of threads that the work is spread across. Important note: Changing the value of the Parallelism parameter changes the hash output.
+
+```go
+params := &argon2id.Params{
+	Memory:      128 * 1024,
+	Iterations:  4,
+	Parallelism: uint8(runtime.NumCPU()),
+	SaltLength:  16,
+	KeyLength:   32,
+}
+
+
+hash, err := argon2id.CreateHash("pa$$word", params)
+if err != nil {
+	log.Fatal(err)
+}
+```
+
+For guidance and an outline process for choosing appropriate parameters see https://tools.ietf.org/html/draft-irtf-cfrg-argon2-04#section-4.

Server/vendor/github.com/alexedwards/argon2id/argon2id.go

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+// Package argon2id provides a convience wrapper around Go's golang.org/x/crypto/argon2
+// implementation, making it simpler to securely hash and verify passwords
+// using Argon2.
+//
+// It enforces use of the Argon2id algorithm variant and cryptographically-secure
+// random salts.
+package argon2id
+
+import (
+	"crypto/rand"
+	"crypto/subtle"
+	"encoding/base64"
+	"errors"
+	"fmt"
+	"runtime"
+	"strings"
+
+	"golang.org/x/crypto/argon2"
+)
+
+var (
+	// ErrInvalidHash in returned by ComparePasswordAndHash if the provided
+	// hash isn't in the expected format.
+	ErrInvalidHash = errors.New("argon2id: hash is not in the correct format")
+
+	// ErrIncompatibleVariant is returned by ComparePasswordAndHash if the
+	// provided hash was created using a unsupported variant of Argon2.
+	// Currently only argon2id is supported by this package.
+	ErrIncompatibleVariant = errors.New("argon2id: incompatible variant of argon2")
+
+	// ErrIncompatibleVersion is returned by ComparePasswordAndHash if the
+	// provided hash was created using a different version of Argon2.
+	ErrIncompatibleVersion = errors.New("argon2id: incompatible version of argon2")
+)
+
+// DefaultParams provides some sane default parameters for hashing passwords.
+//
+// Follows recommendations given by the Argon2 RFC:
+// "The Argon2id variant with t=1 and maximum available memory is RECOMMENDED as a
+// default setting for all environments. This setting is secure against side-channel
+// attacks and maximizes adversarial costs on dedicated bruteforce hardware.""
+//
+// The default parameters should generally be used for development/testing purposes
+// only. Custom parameters should be set for production applications depending on
+// available memory/CPU resources and business requirements.
+var DefaultParams = &Params{
+	Memory:      64 * 1024,
+	Iterations:  1,
+	Parallelism: uint8(runtime.NumCPU()),
+	SaltLength:  16,
+	KeyLength:   32,
+}
+
+// Params describes the input parameters used by the Argon2id algorithm. The
+// Memory and Iterations parameters control the computational cost of hashing
+// the password. The higher these figures are, the greater the cost of generating
+// the hash and the longer the runtime. It also follows that the greater the cost
+// will be for any attacker trying to guess the password. If the code is running
+// on a machine with multiple cores, then you can decrease the runtime without
+// reducing the cost by increasing the Parallelism parameter. This controls the
+// number of threads that the work is spread across. Important note: Changing the
+// value of the Parallelism parameter changes the hash output.
+//
+// For guidance and an outline process for choosing appropriate parameters see
+// https://tools.ietf.org/html/draft-irtf-cfrg-argon2-04#section-4
+type Params struct {
+	// The amount of memory used by the algorithm (in kibibytes).
+	Memory uint32
+
+	// The number of iterations over the memory.
+	Iterations uint32
+
+	// The number of threads (or lanes) used by the algorithm.
+	// Recommended value is between 1 and runtime.NumCPU().
+	Parallelism uint8
+
+	// Length of the random salt. 16 bytes is recommended for password hashing.
+	SaltLength uint32
+
+	// Length of the generated key. 16 bytes or more is recommended.
+	KeyLength uint32
+}
+
+// CreateHash returns a Argon2id hash of a plain-text password using the
+// provided algorithm parameters. The returned hash follows the format used by
+// the Argon2 reference C implementation and contains the base64-encoded Argon2id d
+// derived key prefixed by the salt and parameters. It looks like this:
+//
+//		$argon2id$v=19$m=65536,t=3,p=2$c29tZXNhbHQ$RdescudvJCsgt3ub+b+dWRWJTmaaJObG
+//
+func CreateHash(password string, params *Params) (hash string, err error) {
+	salt, err := generateRandomBytes(params.SaltLength)
+	if err != nil {
+		return "", err
+	}
+
+	key := argon2.IDKey([]byte(password), salt, params.Iterations, params.Memory, params.Parallelism, params.KeyLength)
+
+	b64Salt := base64.RawStdEncoding.EncodeToString(salt)
+	b64Key := base64.RawStdEncoding.EncodeToString(key)
+
+	hash = fmt.Sprintf("$argon2id$v=%d$m=%d,t=%d,p=%d$%s$%s", argon2.Version, params.Memory, params.Iterations, params.Parallelism, b64Salt, b64Key)
+	return hash, nil
+}
+
+// ComparePasswordAndHash performs a constant-time comparison between a
+// plain-text password and Argon2id hash, using the parameters and salt
+// contained in the hash. It returns true if they match, otherwise it returns
+// false.
+func ComparePasswordAndHash(password, hash string) (match bool, err error) {
+	match, _, err = CheckHash(password, hash)
+	return match, err
+}
+
+// CheckHash is like ComparePasswordAndHash, except it also returns the params that the hash was
+// created with. This can be useful if you want to update your hash params over time (which you
+// should).
+func CheckHash(password, hash string) (match bool, params *Params, err error) {
+	params, salt, key, err := DecodeHash(hash)
+	if err != nil {
+		return false, nil, err
+	}
+
+	otherKey := argon2.IDKey([]byte(password), salt, params.Iterations, params.Memory, params.Parallelism, params.KeyLength)
+
+	keyLen := int32(len(key))
+	otherKeyLen := int32(len(otherKey))
+
+	if subtle.ConstantTimeEq(keyLen, otherKeyLen) == 0 {
+		return false, params, nil
+	}
+	if subtle.ConstantTimeCompare(key, otherKey) == 1 {
+		return true, params, nil
+	}
+	return false, params, nil
+}
+
+func generateRandomBytes(n uint32) ([]byte, error) {
+	b := make([]byte, n)
+	_, err := rand.Read(b)
+	if err != nil {
+		return nil, err
+	}
+
+	return b, nil
+}
+
+// DecodeHash expects a hash created from this package, and parses it to return the params used to
+// create it, as well as the salt and key (password hash).
+func DecodeHash(hash string) (params *Params, salt, key []byte, err error) {
+	vals := strings.Split(hash, "$")
+	if len(vals) != 6 {
+		return nil, nil, nil, ErrInvalidHash
+	}
+
+	if vals[1] != "argon2id" {
+		return nil, nil, nil, ErrIncompatibleVariant
+	}
+
+	var version int
+	_, err = fmt.Sscanf(vals[2], "v=%d", &version)
+	if err != nil {
+		return nil, nil, nil, err
+	}
+	if version != argon2.Version {
+		return nil, nil, nil, ErrIncompatibleVersion
+	}
+
+	params = &Params{}
+	_, err = fmt.Sscanf(vals[3], "m=%d,t=%d,p=%d", &params.Memory, &params.Iterations, &params.Parallelism)
+	if err != nil {
+		return nil, nil, nil, err
+	}
+
+	salt, err = base64.RawStdEncoding.Strict().DecodeString(vals[4])
+	if err != nil {
+		return nil, nil, nil, err
+	}
+	params.SaltLength = uint32(len(salt))
+
+	key, err = base64.RawStdEncoding.Strict().DecodeString(vals[5])
+	if err != nil {
+		return nil, nil, nil, err
+	}
+	params.KeyLength = uint32(len(key))
+
+	return params, salt, key, nil
+}

Server/vendor/github.com/alexedwards/argon2id/travis.yml

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+language: go
+
+go:
+- 1.12.x
+- 1.13.x
+- 1.14.x
+- tip
+
+script: go test -race .