You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
38 lines
1.3 KiB
38 lines
1.3 KiB
import { getAddress } from "../address/index.js"; |
|
import { keccak256 } from "../crypto/index.js"; |
|
import { recoverAddress } from "../transaction/index.js"; |
|
import { |
|
assertArgument, concat, encodeRlp, toBeArray |
|
} from "../utils/index.js"; |
|
|
|
import type { Addressable } from "../address/index.js"; |
|
import type { SignatureLike } from "../crypto/index.js"; |
|
import type { BigNumberish, Numeric } from "../utils/index.js"; |
|
|
|
export interface AuthorizationRequest { |
|
address: string | Addressable; |
|
nonce?: Numeric; |
|
chainId?: BigNumberish; |
|
} |
|
|
|
/** |
|
* Computes the [[link-eip-7702]] authorization digest to sign. |
|
*/ |
|
export function hashAuthorization(auth: AuthorizationRequest): string { |
|
assertArgument(typeof(auth.address) === "string", "invalid address for hashAuthorization", "auth.address", auth); |
|
return keccak256(concat([ |
|
"0x05", encodeRlp([ |
|
(auth.chainId != null) ? toBeArray(auth.chainId): "0x", |
|
getAddress(auth.address), |
|
(auth.nonce != null) ? toBeArray(auth.nonce): "0x", |
|
]) |
|
])); |
|
} |
|
|
|
/** |
|
* Return the address of the private key that produced |
|
* the signature %%sig%% during signing for %%message%%. |
|
*/ |
|
export function verifyAuthorization(auth: AuthorizationRequest, sig: SignatureLike): string { |
|
return recoverAddress(hashAuthorization(auth), sig); |
|
}
|
|
|