Documentation
¶
Overview ¶
SPDX-License-Identifier: AGPL-3.0-or-later
SPDX-License-Identifier: AGPL-3.0-or-later
SPDX-License-Identifier: AGPL-3.0-or-later
SPDX-License-Identifier: AGPL-3.0-or-later
Index ¶
- func DecryptToken(ciphertext []byte, key []byte) (string, error)
- func EncryptToken(plaintext string, key []byte) ([]byte, error)
- func GenerateCodeChallenge(verifier string) string
- func GenerateCodeVerifier() (string, error)
- func GenerateNonce() (string, error)
- func ValidateCodeVerifier(verifier string) bool
- type Ed25519Signer
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
func DecryptToken ¶
DecryptToken decrypts a ciphertext using AES-256-GCM The key must be 32 bytes for AES-256 Expects input format: nonce + ciphertext + auth tag (as created by EncryptToken)
func EncryptToken ¶
EncryptToken encrypts a plaintext token using AES-256-GCM The key must be 32 bytes for AES-256 Returns: nonce + ciphertext + auth tag (combined)
func GenerateCodeChallenge ¶
GenerateCodeChallenge generates a PKCE code challenge from a code verifier Uses the S256 method: BASE64URL(SHA256(ASCII(code_verifier)))
func GenerateCodeVerifier ¶
GenerateCodeVerifier generates a cryptographically secure PKCE code verifier The verifier is a random string of 43-128 characters using the unreserved character set. Returns a base64 URL-safe encoded string suitable for OAuth2 PKCE flow.
func GenerateNonce ¶
GenerateNonce creates a 16-byte cryptographically secure random nonce for replay attack prevention
func ValidateCodeVerifier ¶
ValidateCodeVerifier validates that a code verifier meets RFC 7636 requirements - Length: 43-128 characters - Characters: [A-Za-z0-9-._~]
Types ¶
type Ed25519Signer ¶
type Ed25519Signer struct {
// contains filtered or unexported fields
}
Ed25519Signer provides cryptographic signature operations using Ed25519 elliptic curve algorithm
func NewEd25519Signer ¶
func NewEd25519Signer() (*Ed25519Signer, error)
NewEd25519Signer initializes signer with persistent or ephemeral keypair from environment
func (*Ed25519Signer) CreateSignature ¶
func (s *Ed25519Signer) CreateSignature(ctx context.Context, docID string, user *models.User, timestamp time.Time, nonce string, docChecksum string) (string, string, error)
CreateSignature generates SHA-256 payload hash and Ed25519 signature for non-repudiation proof The context is used for tracing and cancellation propagation.
func (*Ed25519Signer) GetPublicKey ¶
func (s *Ed25519Signer) GetPublicKey() string
GetPublicKey exports the base64-encoded public key for signature verification by external parties
Source Files