import { Ripemd160, Secp256k1, Sha1, Sha256 } from '../../../crypto/crypto';
import { InstructionSet } from '../../virtual-machine';
import { AuthenticationInstruction } from '../instruction-sets-types';
import { OpcodesBCH } from './bch-opcodes';
import { AuthenticationProgramBCH, AuthenticationProgramStateBCH } from './bch-types';
export { OpcodesBCH };
export declare const isPayToScriptHash: <Opcodes>(verificationInstructions: readonly AuthenticationInstruction<Opcodes>[]) => boolean;
/**
 * Test a stack item for the SegWit Recovery Rules activated in `BCH_2019_05`.
 *
 * @param bytecode - the stack item to test
 */
export declare const isWitnessProgram: (bytecode: Uint8Array) => boolean;
/**
 * This library's supported versions of the BCH virtual machine. "Strict"
 * versions (A.K.A. `isStandard` from the C++ implementations) enable additional
 * validation which is commonly used on the P2P network before relaying
 * transactions. Transactions which fail these rules are often called
 * "non-standard" – the transactions can technically be included by miners in
 * valid blocks, but most network nodes will refuse to relay them.
 */
export declare enum InstructionSetBCH {
    BCH_2019_05 = "BCH_2019_05",
    BCH_2019_05_STRICT = "BCH_2019_05_STRICT",
    BCH_2019_11_SPEC = "BCH_2019_11",
    BCH_2019_11_STRICT_SPEC = "BCH_2019_11_STRICT"
}
export declare const instructionSetBCHCurrentStrict = InstructionSetBCH.BCH_2019_05_STRICT;
export declare const getFlagsForInstructionSetBCH: (instructionSet: InstructionSetBCH) => {
    disallowUpgradableNops: boolean;
    requireBugValueZero: boolean;
    requireMinimalEncoding: boolean;
    requireNullSignatureFailures: boolean;
};
/**
 * Initialize a new instruction set for the BCH virtual machine.
 *
 * @param flags - an object configuring the flags for this vm (see
 * `getFlagsForInstructionSetBCH`)
 * @param sha1 - a Sha1 implementation
 * @param sha256 - a Sha256 implementation
 * @param ripemd160 - a Ripemd160 implementation
 * @param secp256k1 - a Secp256k1 implementation
 */
export declare const createInstructionSetBCH: ({ flags, ripemd160, secp256k1, sha1, sha256, }: {
    flags: {
        readonly disallowUpgradableNops: boolean;
        readonly requireBugValueZero: boolean;
        readonly requireMinimalEncoding: boolean;
        readonly requireNullSignatureFailures: boolean;
    };
    sha1: {
        hash: Sha1['hash'];
    };
    sha256: {
        hash: Sha256['hash'];
    };
    ripemd160: {
        hash: Ripemd160['hash'];
    };
    secp256k1: {
        verifySignatureSchnorr: Secp256k1['verifySignatureSchnorr'];
        verifySignatureDERLowS: Secp256k1['verifySignatureDERLowS'];
    };
}) => InstructionSet<AuthenticationProgramBCH, AuthenticationProgramStateBCH>;
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