GCM

public enum GCM : Cipher

AES in GCM mode with 128-bit tags.

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  • Encrypts and authenticates data using AES-GCM.

    Throws

    CipherError errors

    Declaration

    Swift

    public static func seal<Plaintext: DataProtocol, AuthenticatedData: DataProtocol>
    (_ message: Plaintext, using key: SymmetricKey, nonce: Nonce? = nil, authenticating authenticatedData: AuthenticatedData) throws -> SealedBox

    Parameters

    message

    The message to encrypt and authenticate
    key

    An encryption key of 128, 192 or 256 bits
    nonce

    An Nonce for AES-GCM encryption. The nonce must be unique for every use of the key to seal data. It can be safely generated with AES.GCM.Nonce()
    authenticatedData

    Data to authenticate as part of the seal

    Return Value

    A sealed box returning the authentication tag (seal) and the ciphertext

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  • Encrypts and authenticates data using AES-GCM.

    Throws

    CipherError errors

    Declaration

    Swift

    public static func seal<Plaintext: DataProtocol>
    (_ message: Plaintext, using key: SymmetricKey, nonce: Nonce? = nil) throws -> SealedBox

    Parameters

    message

    The message to encrypt and authenticate
    key

    An encryption key of 128, 192 or 256 bits
    nonce

    An Nonce for AES-GCM encryption. The nonce must be unique for every use of the key to seal data. It can be safely generated with AES.GCM.Nonce()

    Return Value

    A sealed box returning the authentication tag (seal) and the ciphertext

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  • Authenticates and decrypts data using AES-GCM.

    Throws

    CipherError errors. If the authentication of the sealedbox failed, incorrectTag is thrown.

    Declaration

    Swift

    public static func open<AuthenticatedData: DataProtocol>
    (_ sealedBox: SealedBox, using key: SymmetricKey, authenticating authenticatedData: AuthenticatedData) throws -> Data

    Parameters

    sealedBox

    The sealed box to authenticate and decrypt
    key

    An encryption key of 128, 192 or 256 bits
    nonce

    An Nonce for AES-GCM encryption. The nonce must be unique for every use of the key to seal data. It can be safely generated with AES.GCM.Nonce().
    authenticatedData

    Data that was authenticated as part of the seal

    Return Value

    The ciphertext if opening was successful

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  • Authenticates and decrypts data using AES-GCM.

    Throws

    CipherError errors. If the authentication of the sealedbox failed, incorrectTag is thrown.

    Declaration

    Swift

    public static func open(_ sealedBox: SealedBox, using key: SymmetricKey) throws -> Data

    Parameters

    sealedBox

    The sealed box to authenticate and decrypt
    key

    An encryption key of 128, 192 or 256 bits
    nonce

    An Nonce for AES-GCM encryption. The nonce must be unique for every use of the key to seal data. It can be safely generated with AES.GCM.Nonce().

    Return Value

    The ciphertext if opening was successful

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  • Undocumented

    See more

    Declaration

    Swift

    public struct SealedBox : AEADSealedBox
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AES.GCM + Nonce