generateRandomComputationOffset

client

generateRandomComputationOffset(): U64

Defined in: src/utils/arcium.ts:237

Generates a cryptographically secure random computation offset.

Returns

U64

A random 64-bit unsigned integer (U64) computation offset

Throws

ArciumAccountError When random byte generation fails or conversion fails

Remarks

A computation offset is a unique 64-bit identifier used to derive the Program Derived Address (PDA) for a computation account in the Arcium Multi-Execution Environment (MXE). Each computation instance requires a unique offset to ensure its account address is unique.

Security: This function uses cryptographically secure random number generation (randomBytes from @noble/hashes/utils) to ensure the offset is unpredictable and cannot be guessed or manipulated by attackers.

Usage: The generated offset is used as input to getArciumAccounts() to derive all the necessary account addresses for a computation instance.

Example

// Generate a random computation offset
const offset = generateRandomComputationOffset();
console.log(`Generated offset: ${offset}`);

// Use it to get Arcium accounts
const accounts = getArciumAccounts(offset, 'share_patient_data');