signature = crypto.ed25519.sign(message, seed)
[signature, publicKey] = crypto.ed25519.sign(message, seed)
[signature, publicKey] = crypto.ed25519.sign(filename, seed, '-file')
| Parameter | Description |
|---|---|
| message | a uint8 vector (raw bytes) or a character vector (UTF-8 bytes): content to sign. |
| filename | a string: existing file whose raw bytes are signed. |
| seed | a uint8 vector of 32 bytes or 64 hexadecimal characters: private Ed25519 seed. |
| '-file' | first argument is a filename. |
| Parameter | Description |
|---|---|
| signature | a character vector: 128 lowercase hexadecimal characters (64 bytes). |
| publicKey | a character vector: 64 lowercase hexadecimal characters (32 bytes), public key derived from the seed. |
crypto.ed25519.sign computes a pure Ed25519 signature (RFC 8032, section 5.1) over the exact bytes of a message. Signatures are deterministic: the same seed and message always give the same signature.
The seed is the 32-byte private key. Keep it secret: anyone holding it can sign. This function is intended for tests, local development and private package registries; the public key returned as second output is the value to distribute to verifiers.
seed = 'c5aa8df43f9f837bedb7442f31dcb7b166d38535076f094b85ce3a2e0b4458f7';
[signature, publicKey] = crypto.ed25519.sign(uint8([175, 130]), seed)seed = 'c5aa8df43f9f837bedb7442f31dcb7b166d38535076f094b85ce3a2e0b4458f7';
[signature, publicKey] = crypto.ed25519.sign('Nelson', seed);
tf = crypto.ed25519.verify('Nelson', signature, publicKey)| Version | Description |
|---|---|
| 2.0.0 | initial version |