### Initialize Argon2 with Custom Parameters

Source: https://github.com/mimiclone/argon2-swift/blob/main/README.md

Instantiate Argon2 with optional parameters for parallelism, tag length, memory size, iterations, and variant. Defaults are used if parameters are omitted.

```swift
import SwiftArgon2

// Argon2Params are optional and you will get these defaults if you omit them
let argon2 = try Argon2(params: Argon2Params(
    parallelism: 4,     // Number of lanes
    tagLength: 32,      // Output length in bytes
    memorySize: 65536,  // Memory size in KiB (64 MiB)
    iterations: 3,      // Number of passes
    variant: .argon2id  // .argon2d, .argon2i, or .argon2id
))

```

--------------------------------

### Add argon2-swift to Package.swift

Source: https://github.com/mimiclone/argon2-swift/blob/main/README.md

Add the argon2-swift library as a dependency in your Package.swift file.

```swift
.package(url: "https://github.com/mimiclone/argon2-swift.git", from: "1.0.4")
```

--------------------------------

### Add SwiftArgon2 to Target Dependencies

Source: https://github.com/mimiclone/argon2-swift/blob/main/README.md

Include SwiftArgon2 as a product dependency for your target in Package.swift.

```swift
.target(
    name: "YourTarget",
    dependencies: [
        .product(name: "SwiftArgon2", package: "argon2-swift")
    ]
)
```

--------------------------------

### Compute Argon2 Hash

Source: https://github.com/mimiclone/argon2-swift/blob/main/README.md

Compute the hash of a password using the provided Argon2 instance, password data, and a cryptographically secure random salt. Secret and associated data are optional.

```swift
let hash = try await argon2.compute(
    password: "MyPassword".data(using: .utf8)!,
    salt: cryptographicallySecureRandomSalt   // 16+ bytes recommended
    // Optional: secret (keyed hash), associatedData
)

```

--------------------------------

### Produce PHC-Formatted String

Source: https://github.com/mimiclone/argon2-swift/blob/main/README.md

Generate an RFC 9106-compliant PHC-formatted string representing the Argon2 hash. This string is interoperable with other compliant verifiers.

```swift
let encoded = try await argon2.computeEncoded(
    password: passwordData,
    salt: saltData
)
// "$argon2id$v=19$m=65536,t=3,p=4$<salt>$<hash>"

```

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