caver.wallet.keyring은 주소와 개인키를 포함하는 키링 관련 기능을 제공하는 패키지입니다.
Class
Keyring은 계정 주소와 개인키를 포함하는 구조입니다. 사용자들이 클레이튼 계정을 사용해 서명을 할 수 있게 해주는 caver-js 클래스입니다.
Keyring can be classified into three types depending on the type of key being stored: SingleKeyring to store one address and one private key, MultipleKeyring to store one address and multiple private keys, and RoleBasedKeyring to store one address and one or more private keys for each role.
const keyring = new caver.wallet.keyring.singleKeyring(address, key)
SingleKeyring은 계정의 address와 private key를 저장하는 클래스입니다. To create a SingleKeyring instance with a private key string, please refer to caver.wallet.keyring.create.
SingleKeyring는 역할이 할당되지 않은 개인키를 사용합니다.
properties
Name
Type
Description
address
string
계정 주소.
key
MultipleKeyring
const keyring = new caver.wallet.keyring.multipleKeyring(address, keys)
MultipleKeyring은 계정의 address와 private keys를 저장하는 클래스입니다. To create a MultipleKeyring instance with private key strings, please refer to caver.wallet.keyring.create.
MultipleKeyring는 역할이 할당되지 않은 개인키들을 사용합니다.
properties
Name
Type
Description
address
string
The address of the account.
keys
Array
RoleBasedKeyring
const keyring = new caver.wallet.keyring.roleBasedKeyring(address, keys)
RoleBasedKeyring는 계정의 address와 각 역할에 사용될 private keys를 배열 형식으로 저장하는 클래스입니다.
RoleBasedKeyring defines keys which is implemented as a two-dimensional array (empty keys looks like [ [], [], [] ]) that can include multiple keys for each role. 2차원 배열의 첫 번째 원소에는 roleTransactionKey로 사용될 개인키(들), 두 번째 원소에는 roleAccountUpdateKey로 사용될 개인키(들), 세 번째 원소에는 roleFeePayerKey로 사용될 개인키(들)이 저장됩니다.
properties
Name
Type
Description
address
string
The address of the account.
keys
Array
이하는 각 역할에 정의된 키를 직관적으로 사용하기 위해 키링에 정의된 게터(getter)입니다. 각 역할에 사용되는 키에 게터를 통해 더 쉽게 접근할 수 있습니다.
Name
Type
Description
roleTransactionKey
Array
(계정 업데이트 트랜잭션을 제외한) 트랜잭션 서명에 사용되는 roleTransactionKey입니다. keyring.roleTransactionkey는 keys 속성의 첫 번째 요소를 반환합니다.
roleAccountUpdateKey
Array
계정 업데이트 트랜잭션 서명을 위해 사용되는 roleAccountUpdateKey입니다. keyring.roleAccountUpdateKey는 keys 속성의 두 번째 요소를 반환합니다.
roleFeePayerKey
Array
이 roleFeePayerKey는 feePayer로 트랜잭션에 서명할 때 사용됩니다. keyring.roleFeePayerKey는 keys 속성의 세 번째 요소를 반환합니다.
PrivateKey
const privateKey = new caver.wallet.keyring.privateKey('0x{private key}')
PrivateKey는 개인키 문자열을 포함하는 클래스입니다. Keyring 내 각 역할에 사용되는 개인키는 이 PrivateKey 인스턴스로 정의됩니다.
properties
Name
Type
Description
privateKey
string
개인키 문자열.
SignatureData
SignatureData는 서명 데이터를 포함한 클래스입니다. sign 또는 signMessage의 결과인 서명은 signatureData로서 반환됩니다. 아래와 같이 signatureData가 서명(들)을 포함하는 것을 확인할 수 있습니다.
const signature = new caver.wallet.keyring.signatureData(['0x1b', '0x2dfc6...', '0x15038...'])
If key is a private key string, a SingleKeyring instance that uses a single private key is created. If key is an array containing private key strings, a MultipleKeyring instance that use multiple private keys is created. If key is a 2D array of which each element contains the private key(s) to be used for each role, a RoleBasedKeyring instance is created.
공개키 문자열(들)을 반환합니다. If keyring is an instance of SingleKeyring, getPublicKey returns a public key string. If keyring is an instance of MultipleKeyring, getPublicKey returns an array of public key strings. If keyring is an instance of RoleBasedKeyring, getPublicKey returns a two-dimensional array in which the public key(s) used for each role is defined as an array.
Parameters
Name
Type
Description
compressed
boolean
(optional) Whether in compressed format or not (default: false).
Return Value
Type
Description
string \
Array
Example
// Get public key with singleKeyring
> keyring.getPublicKey()
'0x49b2a...'
// Get public key with multipleKeyring
> keyring.getPublicKey()
[ '0x65b51...', '0x8d85c...' ]
// Get public key with roleBasedKeyring
> keyring.getPublicKey()
[
[ '0x2d939...', '0x6beb4...', '0xd8f2f...' ],
[ '0xf09cd...', '0x96a63...', '0x02000...' ],
[ '0xc2d33...', '0x3088f...', '0xab193...' ]
]
keyring.copy
keyring.copy()
Returns a copied keyring instance.
Return Value
Type
Description
Keyring
Example
// When keyring is an instance of SingleKeyring
> keyring.copy()
SingleKeyring {
_address: '0x30fcfa9679c7141a234c1324c7e0a8b715bdfc90',
_key: PrivateKey { _privateKey: '0x{private key}' }
}
// When keyring is an instance of MultipleKeyring
> keyring.copy()
MultipleKeyring {
_address: '0x30fcfa9679c7141a234c1324c7e0a8b715bdfc90',
_keys: [
PrivateKey { _privateKey: '0x{private key1}' },
PrivateKey { _privateKey: '0x{private key2}' }
]
}
// When keyring is an instance of RoleBasedKeyring
> keyring.copy()
RoleBasedKeyring {
_address: '0x30fcfa9679c7141a234c1324c7e0a8b715bdfc90',
_keys: [
[
PrivateKey { _privateKey: '0x{private key1}' },
PrivateKey { _privateKey: '0x{private key2}' }
],
[
PrivateKey { _privateKey: '0x{private key3}' },
PrivateKey { _privateKey: '0x{private key4}' }
],
[
PrivateKey { _privateKey: '0x{private key5}' },
PrivateKey { _privateKey: '0x{private key6}' }
]
]
}
keyring.sign
keyring.sign(transactionHash, chainId, role [, index])
Signs with transactionHash with the private key(s) and returns signature(s). If the user has not defined an index parameter, keyring.sign signs transaction using all the private keys used by the role. If index is defined, the keyring.sign signs transaction using only one private key at the index. The role used in caver-js can be checked through caver.wallet.keyring.role.
A number indicating the role of the key. You can use caver.wallet.keyring.role.
index
number
(optional) The index of the private key you want to use. The index must be less than the length of the array of the private keys defined for each role. If an index is not defined, this method will use all the private keys.
Return Value
Type
Description
Array
Example
// Using roleBasedKeyring which has two private key in roleTransactionKey
> keyring.sign('0xe9a11d9ef95fb437f75d07ce768d43e74f158dd54b106e7d3746ce29d545b550', '0x2810', caver.wallet.keyring.role.roleTransactionKey)
[
SignatureData { _v: '0x5044', _r: '0x7a8b6...', _s: '0x17139...' },
SignatureData { _v: '0x5043', _r: '0x7f978...', _s: '0x1a532...' }
]
// Using roleBasedKeyring which has two private key in roleTransactionKey with index
> keyring.sign('0xe9a11d9ef95fb437f75d07ce768d43e74f158dd54b106e7d3746ce29d545b550', '0x2810', caver.wallet.keyring.role.roleTransactionKey, 1)
[
SignatureData { _v: '0x5043', _r: '0x7f978...', _s: '0x1a532...' }
]
// Using roleBasedKeyring which has two private key in roleAccountUpdateKey
> keyring.sign('0xe9a11d9ef95fb437f75d07ce768d43e74f158dd54b106e7d3746ce29d545b550', '0x2810', caver.wallet.keyring.role.roleAccountUpdateKey)
[
SignatureData { _v: '0x5044', _r: '0xdbce8...', _s: '0x039a6...' },
SignatureData { _v: '0x5044', _r: '0xf69b7...', _s: '0x71dc9...' }
]
// Using roleBasedKeyring which has two private key in roleAccountUpdateKey with index
> keyring.sign('0xe9a11d9ef95fb437f75d07ce768d43e74f158dd54b106e7d3746ce29d545b550', '0x2810', caver.wallet.keyring.role.roleAccountUpdateKey, 1)
[
SignatureData { _v: '0x5044', _r: '0xf69b7...', _s: '0x71dc9...' }
]
// Using roleBasedKeyring which has two private key in roleFeePayerKey
> keyring.sign('0xe9a11d9ef95fb437f75d07ce768d43e74f158dd54b106e7d3746ce29d545b550', '0x2810', caver.wallet.keyring.role.roleFeePayerKey)
[
SignatureData { _v: '0x5043', _r: '0xe48bf...', _s: '0x1cf36...' },
SignatureData { _v: '0x5043', _r: '0x82976...', _s: '0x3c5e0...' }
]
// Using roleBasedKeyring which has two private key in roleFeePayerKey with index
> keyring.sign('0xe9a11d9ef95fb437f75d07ce768d43e74f158dd54b106e7d3746ce29d545b550', '0x2810', caver.wallet.keyring.role.roleFeePayerKey, 1)
[
SignatureData { _v: '0x5043', _r: '0x82976...', _s: '0x3c5e0...' }
]
keyring.ecsign
keyring.ecsign(hash, role [, index])
Signs with hashed data using the private key and returns a signature where V is 0 or 1 (parity of the y-value of a the secp256k1 curve).
This function is only used for certain transaction types. Therefore, it is recommended to use caver.wallet.sign or transaction.sign when signing a transaction.
Parameters
Name
Type
Description
hash
string
The hash string to sign.
role
number
A number indicating the role of the key. You can use caver.wallet.keyring.role.
index
number
(optional) The index of the private key you want to use. The index must be less than the length of the array of the private keys defined for each role. If an index is not defined, this method will use all the private keys.
Signs message with Klaytn-specific prefix. This calculates a Klaytn-specific signature with:
sign(keccak256("\x19Klaytn Signed Message:\n" + len(message) + message)))
If the user has not defined the index parameter, keyring.signMessage signs message with all the private keys used by the role. If the index parameter is given, keyring.signMessage signs message using only one private key at the given index. The role used in caver-js can be found through caver.wallet.keyring.role.
Parameters
Name
Type
Description
message
string
The message to sign.
role
number
A number indicating the role of the key. You can use caver.wallet.keyring.role.
index
number
(optional) The index of the private key you want to use. The index must be less than the length of the array of the private keys defined for each role. If an index is not defined, this method will use all the private keys.
Return Value
Type
Description
object
An object that includes the result of signing.
The returned object contains the following:
Name
Type
Description
messageHash
string
The hash of message with Klaytn-specific prefix.
signatures
Array
message
string
The message to sign.
Example
// Sign with roleTransactionKey
> keyring.signMessage('message to sign', caver.wallet.keyring.role.roleTransactionKey)
{
messageHash: '0x9c4c1ae0aa1faf7e59eaf6fcf36a34542698197b379a9949b58c92925e74c069',
signatures: [
SignatureData { _v: '0x1b', _r: '0x2dfc6...', _s: '0x15038...' }
],
message: 'message to sign'
}
// Sign with roleFeePayerKey and index
> keyring.signMessage('message to sign', caver.wallet.keyring.role.roleFeePayerKey, 1)
{
messageHash: '0x9c4c1ae0aa1faf7e59eaf6fcf36a34542698197b379a9949b58c92925e74c069',
signatures: [
SignatureData { _v: '0x1b', _r: '0x2dfc6...', _s: '0x15038...' }
],
message: 'message to sign'
}
keyring.getKeyByRole
keyring.getKeyByRole(role)
Returns the private key(s) used by the role entered as a parameter.
Parameters
Name
Type
Description
role
number
A number indicating the role of the key. You can use caver.wallet.keyring.role.
Return Value
Type
Description
Array
Example
// getKeyByRole with singleKeyring.
// The singleKeyring will return the single same PrivateKey intance regardless of role.
> keyring.getKeyByRole(caver.wallet.keyring.role.roleTransactionKey)
PrivateKey { _privateKey: '0x{private key}' }
> keyring.getKeyByRole(caver.wallet.keyring.role.roleAccountUpdateKey)
PrivateKey { _privateKey: '0x{private key}' }
> keyring.getKeyByRole(caver.wallet.keyring.role.roleFeePayerKey)
PrivateKey { _privateKey: '0x{private key}' }
// getKeyByRole with multipleKeyring.
// The multipleKeyring will also return the single same array of PrivateKey intances regardless of role
> keyring.getKeyByRole(caver.wallet.keyring.role.roleTransactionKey)
[
PrivateKey { _privateKey: '0x{private key1}' },
PrivateKey { _privateKey: '0x{private key2}' }
]
> keyring.getKeyByRole(caver.wallet.keyring.role.roleAccountUpdateKey)
[
PrivateKey { _privateKey: '0x{private key1}' },
PrivateKey { _privateKey: '0x{private key2}' }
]
> keyring.getKeyByRole(caver.wallet.keyring.role.roleFeePayerKey)
[
PrivateKey { _privateKey: '0x{private key1}' },
PrivateKey { _privateKey: '0x{private key2}' }
]
// getKeyByRole with roleBasedKeyring.
// The roleBasedKeyring will return different array of PrivateKey intances depends on role
> keyring.getKeyByRole(caver.wallet.keyring.role.roleTransactionKey)
[
PrivateKey { _privateKey: '0x{private key1}' }
]
> keyring.getKeyByRole(caver.wallet.keyring.role.roleAccountUpdateKey)
[
PrivateKey { _privateKey: '0x{private key2}' },
PrivateKey { _privateKey: '0x{private key3}' }
]
> keyring.getKeyByRole(caver.wallet.keyring.role.roleFeePayerKey)
[
PrivateKey { _privateKey: '0x{private key4}' },
PrivateKey { _privateKey: '0x{private key5}' },
PrivateKey { _privateKey: '0x{private key6}' }
]
> keyring.getKlaytnWalletKey()
'0x{private key}0x{type}0x{address in hex}'
keyring.toAccount
keyring.toAccount([options])
Returns the Account instance for updating the AccountKey of the Klaytn accounts. The Account instance has an AccountKey instance that can contain public key(s) inside, which will be sent to Klaytn Network and used for validating transactions. For more details about Account, see Account Update.
Note that if you update the AccountKey of the Account stored in the Klaytn, the old private key(s) cannot be used anymore. See Getting started on how to use the returned Account instance to update information in your Klaytn account on Klaytn.
Depending on the type of the private key(s) in the keyring, the returned Account instances can be classified as follows.
When the keyring contains a private key string: Return an Account instance that includes the address in the keyring and an instance of AccountKeyPublic
When the keyring contains private key strings: Return an Account instance that includes the address in the keyring and an instance of AccountKeyWeigthedMultiSig
When the keyring contains the different private key strings by role: Return an Account instance that includes the address in the keyring and an instance of AccountKeyRoleBased
Parameters
Name
Type
Description
options
Array
Return Value
Type
Description
An Account instance to be used when a user updates AccountKey for their account in the Klaytn. Note that if you want to replace the existing keyring (or the existing private key(s)) with a new keyring (or a new private key(s)) for your account, you must update your AccountKey by sending an Account Update transaction to Klaytn beforehand.
An array of instances containing one private key inside.
A two-dimensional array that defines the keys used for each . Each includes instance(s). 첫 번째 원소는 roleTransactionKey입니다. 두 번째 원소는 roleAccountUpdateKey입니다. 마지막 원소는 roleFeePayerKey입니다.
An array containing the number of keys for each .
A 2D array of which each array element contains keys defined for each is returned.
키링 인스턴스가 반환됩니다. Depending on the key parameter, it can be , or .
