Isomorphic Bitmessage crypto module. Reexports platform-dependent implementations and also some common routines.
Methods
(static) decrypt(privateKey, buf) → {Promise.<Buffer>}
Decrypt message using given private key.
Parameters:
| Name | Type | Description |
|---|---|---|
privateKey |
Buffer | A 32-byte private key of recepient of the mesage |
buf |
Buffer | Encrypted data |
Returns:
- A promise that resolves with the plaintext on successful decryption and rejects on failure.
- Type
- Promise.<Buffer>
(static) encrypt(publicKeyTo, msg, optsnullable) → {Promise.<Buffer>}
Encrypt message for given recepient's public key.
Parameters:
| Name | Type | Attributes | Description |
|---|---|---|---|
publicKeyTo |
Buffer | Recipient's public key (65 bytes) |
|
msg |
Buffer | The message being encrypted |
|
opts |
Object |
<nullable> |
You may also specify initialization vector (16 bytes) and ephemeral private key (32 bytes) to get deterministic results. |
Returns:
- A promise that resolves with the buffer
in
encryptedformat successful encryption and rejects on failure.
- Type
- Promise.<Buffer>
(static) getPrivate() → {Buffer}
Generate new random private key.
Returns:
New private key.
- Type
- Buffer
(static) getPublic(privateKey) → {Buffer}
Generate public key for the given private key.
Parameters:
| Name | Type | Description |
|---|---|---|
privateKey |
Buffer | A 32-byte private key |
Returns:
A 65-byte (uncompressed) public key.
- Type
- Buffer
(static) randomBytes(size) → {Buffer}
Generate cryptographically strong pseudo-random data.
Parameters:
| Name | Type | Description |
|---|---|---|
size |
number | Number of bytes |
Returns:
Buffer with random data.
- Type
- Buffer
(static) ripemd160(buf) → {Buffer}
Calculate RIPEMD-160 hash.
Parameters:
| Name | Type | Description |
|---|---|---|
buf |
Buffer | Input data |
Returns:
Resulting hash.
- Type
- Buffer
(static) sha1(buf) → {Buffer}
Calculate SHA-1 hash.
Parameters:
| Name | Type | Description |
|---|---|---|
buf |
Buffer | Input data |
Returns:
Resulting hash.
- Type
- Buffer
(static) sha256(buf) → {Buffer}
Calculate SHA-256 hash.
Parameters:
| Name | Type | Description |
|---|---|---|
buf |
Buffer | Input data |
Returns:
Resulting hash.
- Type
- Buffer
(static) sha512(buf) → {Buffer}
Calculate SHA-512 hash.
Parameters:
| Name | Type | Description |
|---|---|---|
buf |
Buffer | Input data |
Returns:
Resulting hash.
- Type
- Buffer
(static) sign(privateKey, msg) → {Promise.<Buffer>}
Sign message using ecdsa-with-sha1 scheme.
Parameters:
| Name | Type | Description |
|---|---|---|
privateKey |
Buffer | A 32-byte private key |
msg |
Buffer | The message being signed |
Returns:
A promise that contains signature in DER format when fulfilled.
- Type
- Promise.<Buffer>
(static) verify(publicKey, msg, sig) → {Promise.<undefined>}
Verify signature using ecdsa-with-sha1 scheme.
Parameters:
| Name | Type | Description |
|---|---|---|
publicKey |
Buffer | A 65-byte public key |
msg |
Buffer | The message being verified |
sig |
Buffer | The signature in DER format |
Returns:
A promise that resolves on correct signature and rejects on bad key or signature.
- Type
- Promise.<undefined>