# sign_for [[Source]](https://github.com/XRPLF/rippled/blob/master/src/xrpld/rpc/handlers/SignFor.cpp) The `sign_for` command provides one signature for a [multi-signed transaction](/es-es/docs/concepts/accounts/multi-signing). *By default, this method is [admin-only](/es-es/docs/references/http-websocket-apis/admin-api-methods). It can be used as a public method if the server admin has [enabled public signing](/es-es/docs/infrastructure/configuration/enable-public-signing).* ## Request Format An example of the request format: WebSocket ```json { "id": "sign_for_example", "command": "sign_for", "account": "rLFd1FzHMScFhLsXeaxStzv3UC97QHGAbM", "seed": "s████████████████████████████", "key_type": "ed25519", "tx_json": { "TransactionType": "TrustSet", "Account": "rEuLyBCvcw4CFmzv8RepSiAoNgF8tTGJQC", "Flags": 262144, "LimitAmount": { "currency": "USD", "issuer": "rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh", "value": "100" }, "Sequence": 2, "SigningPubKey": "", "Fee": "30000" } } ``` JSON-RPC ```json { "method": "sign_for", "params": [{ "account": "rLFd1FzHMScFhLsXeaxStzv3UC97QHGAbM", "seed": "s████████████████████████████", "key_type": "ed25519", "tx_json": { "TransactionType": "TrustSet", "Account": "rEuLyBCvcw4CFmzv8RepSiAoNgF8tTGJQC", "Flags": 262144, "LimitAmount": { "currency": "USD", "issuer": "rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh", "value": "100" }, "Sequence": 2, "SigningPubKey": "", "Fee": "30000" } }] } ``` Commandline ```sh #Syntax: rippled sign_for [offline] rippled sign_for rsA2LpzuawewSBQXkiju3YQTMzW13pAAdW s████████████████████████████ '{ "TransactionType": "TrustSet", "Account": "rEuLyBCvcw4CFmzv8RepSiAoNgF8tTGJQC", "Flags": 262144, "LimitAmount": { "currency": "USD", "issuer": "rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh", "value": "100" }, "Sequence": 2, "SigningPubKey": "", "Fee": "30000" }' ``` The request includes the following parameters: | `Field` | Type | Description | | --- | --- | --- | | `account` | String - [Address](/docs/references/protocol/data-types/basic-data-types#addresses) | The address which is providing the signature. | | `tx_json` | Object | The [Transaction](/es-es/docs/references/protocol/transactions) to sign. Unlike using the [sign method](/docs/references/http-websocket-apis/admin-api-methods/signing-methods/sign), all fields of the transaction must be provided, including `Fee` and `Sequence`. The transaction must include the field `SigningPubKey` with an empty string as the value. The object may optionally contain a `Signers` array with previously-collected signatures. | | `signature_target` | String | *(Optional)* Specifies where in the transaction metadata the signature information should be stored. Currently, the only valid value is `CounterpartySignature`. | | `secret` | String | *(Optional)* Secret key of the account supplying the transaction, used to sign it. Do not send your secret to untrusted servers or through unsecured network connections. Cannot be used with `key_type`, `seed`, `seed_hex`, or `passphrase`. | | `seed` | String | *(Optional)* Secret key of the account supplying the transaction, used to sign it. Must be in the XRP Ledger's [base58](/docs/references/protocol/data-types/base58-encodings) format. If provided, you must also specify the `key_type`. Cannot be used with `secret`, `seed_hex`, or `passphrase`. | | `seed_hex` | String | *(Optional)* Secret key of the account supplying the transaction, used to sign it. Must be in hexadecimal format. If provided, you must also specify the `key_type`. Cannot be used with `secret`, `seed`, or `passphrase`. | | `passphrase` | String | *(Optional)* Secret key of the account supplying the transaction, used to sign it, as a string passphrase. If provided, you must also specify the `key_type`. Cannot be used with `secret`, `seed`, or `seed_hex`. | | `key_type` | String | *(Optional)* Type of cryptographic key provided in this request. Valid types are `secp256k1` or `ed25519`. Defaults to `secp256k1`. Cannot be used with `secret`. **Caution:** Ed25519 support is experimental. | You must provide **exactly 1 field** with the secret key, which can be either of the following: * Provide a `secret` value and omit the `key_type` field. This value can be formatted as an XRP Ledger [base58](/docs/references/protocol/data-types/base58-encodings) seed, RFC-1751, hexadecimal, or as a string passphrase. (secp256k1 keys only) * Provide a `key_type` value and exactly one of `seed`, `seed_hex`, or `passphrase`. Omit the `secret` field. (Not supported by the commandline syntax.) ## Response Format An example of a successful response: WebSocket ```json { "id": "sign_for_example", "status": "success", "type": "response", "result": { "tx_blob": "1200142200040000240000000263D5038D7EA4C680000000000000000000000000005553440000000000B5F762798A53D543A014CAF8B297CFF8F2F937E868400000000000753073008114A3780F5CB5A44D366520FC44055E8ED44D9A2270F3E0107321EDDF4ECB8F34A168143B928D48EFE625501FB8552403BBBD3FC038A5788951D7707440C3DCA3FEDE6D785398EEAB10A46B44047FF1B0863FC4313051FB292C991D1E3A9878FABB301128FE4F86F3D8BE4706D53FA97F5536DBD31AF14CD83A5ACDEB068114D96CB910955AB40A0E987EEE82BB3CEDD4441AAAE1F1", "tx_json": { "Account": "rEuLyBCvcw4CFmzv8RepSiAoNgF8tTGJQC", "Fee": "30000", "Flags": 262144, "LimitAmount": { "currency": "USD", "issuer": "rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh", "value": "100" }, "Sequence": 2, "Signers": [ { "Signer": { "Account": "rLFd1FzHMScFhLsXeaxStzv3UC97QHGAbM", "SigningPubKey": "EDDF4ECB8F34A168143B928D48EFE625501FB8552403BBBD3FC038A5788951D770", "TxnSignature": "C3DCA3FEDE6D785398EEAB10A46B44047FF1B0863FC4313051FB292C991D1E3A9878FABB301128FE4F86F3D8BE4706D53FA97F5536DBD31AF14CD83A5ACDEB06" } } ], "SigningPubKey": "", "TransactionType": "TrustSet", "hash": "5216A13A3E3CF662352F0B430C7D82B7450415B6883DD428B5EC1DF1DE45DD8C" } } } ``` JSON-RPC ```json 200 OK { "result" : { "status" : "success", "tx_blob" : "1200142200040000240000000263D5038D7EA4C680000000000000000000000000005553440000000000B5F762798A53D543A014CAF8B297CFF8F2F937E868400000000000753073008114A3780F5CB5A44D366520FC44055E8ED44D9A2270F3E010732102B3EC4E5DD96029A647CFA20DA07FE1F85296505552CCAC114087E66B46BD77DF744730450221009C195DBBF7967E223D8626CA19CF02073667F2B22E206727BFE848FF42BEAC8A022048C323B0BED19A988BDBEFA974B6DE8AA9DCAE250AA82BBD1221787032A864E58114204288D2E47F8EF6C99BCC457966320D12409711E1F1", "tx_json" : { "Account" : "rEuLyBCvcw4CFmzv8RepSiAoNgF8tTGJQC", "Fee" : "30000", "Flags" : 262144, "LimitAmount" : { "currency" : "USD", "issuer" : "rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh", "value" : "100" }, "Sequence" : 2, "Signers" : [ { "Signer" : { "Account" : "rsA2LpzuawewSBQXkiju3YQTMzW13pAAdW", "SigningPubKey" : "02B3EC4E5DD96029A647CFA20DA07FE1F85296505552CCAC114087E66B46BD77DF", "TxnSignature" : "30450221009C195DBBF7967E223D8626CA19CF02073667F2B22E206727BFE848FF42BEAC8A022048C323B0BED19A988BDBEFA974B6DE8AA9DCAE250AA82BBD1221787032A864E5" } } ], "SigningPubKey" : "", "TransactionType" : "TrustSet", "hash" : "A94A6417D1A7AAB059822B894E13D322ED3712F7212CE9257801F96DE6C3F6AE" } } } ``` Commandline ```json Loading: "/etc/rippled.cfg" Connecting to 127.0.0.1:5005 { "result" : { "status" : "success", "tx_blob" : "1200142200040000240000000263D5038D7EA4C680000000000000000000000000005553440000000000B5F762798A53D543A014CAF8B297CFF8F2F937E868400000000000753073008114A3780F5CB5A44D366520FC44055E8ED44D9A2270F3E010732102B3EC4E5DD96029A647CFA20DA07FE1F85296505552CCAC114087E66B46BD77DF744730450221009C195DBBF7967E223D8626CA19CF02073667F2B22E206727BFE848FF42BEAC8A022048C323B0BED19A988BDBEFA974B6DE8AA9DCAE250AA82BBD1221787032A864E58114204288D2E47F8EF6C99BCC457966320D12409711E1F1", "tx_json" : { "Account" : "rEuLyBCvcw4CFmzv8RepSiAoNgF8tTGJQC", "Fee" : "30000", "Flags" : 262144, "LimitAmount" : { "currency" : "USD", "issuer" : "rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh", "value" : "100" }, "Sequence" : 2, "Signers" : [ { "Signer" : { "Account" : "rsA2LpzuawewSBQXkiju3YQTMzW13pAAdW", "SigningPubKey" : "02B3EC4E5DD96029A647CFA20DA07FE1F85296505552CCAC114087E66B46BD77DF", "TxnSignature" : "30450221009C195DBBF7967E223D8626CA19CF02073667F2B22E206727BFE848FF42BEAC8A022048C323B0BED19A988BDBEFA974B6DE8AA9DCAE250AA82BBD1221787032A864E5" } } ], "SigningPubKey" : "", "TransactionType" : "TrustSet", "hash" : "A94A6417D1A7AAB059822B894E13D322ED3712F7212CE9257801F96DE6C3F6AE" } } } ``` The response follows the [standard format](/docs/references/http-websocket-apis/api-conventions/response-formatting), with a successful result containing the following fields: | `Field` | Type | Description | | --- | --- | --- | | `tx_blob` | String | Hexadecimal representation of the signed transaction, including the newly-added signature. If it has enough signatures, you can [submit this string using the `submit` method](/es-es/docs/references/http-websocket-apis/public-api-methods/transaction-methods/submit#submit-only-mode). | | `tx_json` | Object | The [transaction specification](/es-es/docs/references/protocol/transactions) in JSON format, with the newly-added signature in the `Signers` array. If it has enough signatures, you can submit this object using the [submit_multisigned method](/docs/references/http-websocket-apis/public-api-methods/transaction-methods/submit_multisigned). | ## Possible Errors * Any of the [universal error types](/docs/references/http-websocket-apis/api-conventions/error-formatting#universal-errors). * `invalidParams` - One or more fields are specified incorrectly, or one or more required fields are missing. * `srcActNotFound` - If the `Account` from the transaction is not a funded address in the ledger. * `srcActMalformed` - If the signing address (`account` field) from the request is not validly formed. * `badSeed` - The seed value supplied was invalidly-formatted. * `badSecret` - The secret value supplied was invalidly-formatted.