//
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// CryptoSwift
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//
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// Copyright (C) 2014-2022 Marcin Krzyżanowski <marcin@krzyzanowskim.com>
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// This software is provided 'as-is', without any express or implied warranty.
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//
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// In no event will the authors be held liable for any damages arising from the use of this software.
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//
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// Permission is granted to anyone to use this software for any purpose,including commercial applications, and to alter it and redistribute it freely, subject to the following restrictions:
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//
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// - The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation is required.
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// - Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
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// - This notice may not be removed or altered from any source or binary distribution.
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//
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public protocol PaddingProtocol {
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func add(to: Array<UInt8>, blockSize: Int) -> Array<UInt8>
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func remove(from: Array<UInt8>, blockSize: Int?) -> Array<UInt8>
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}
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public enum Padding: PaddingProtocol {
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case noPadding, zeroPadding, pkcs7, pkcs5, eme_pkcs1v15, emsa_pkcs1v15, iso78164, iso10126
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public func add(to: Array<UInt8>, blockSize: Int) -> Array<UInt8> {
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switch self {
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case .noPadding:
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return to // NoPadding().add(to: to, blockSize: blockSize)
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case .zeroPadding:
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return ZeroPadding().add(to: to, blockSize: blockSize)
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case .pkcs7:
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return PKCS7.Padding().add(to: to, blockSize: blockSize)
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case .pkcs5:
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return PKCS5.Padding().add(to: to, blockSize: blockSize)
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case .eme_pkcs1v15:
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return EMEPKCS1v15Padding().add(to: to, blockSize: blockSize)
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case .emsa_pkcs1v15:
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return EMSAPKCS1v15Padding().add(to: to, blockSize: blockSize)
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case .iso78164:
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return ISO78164Padding().add(to: to, blockSize: blockSize)
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case .iso10126:
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return ISO10126Padding().add(to: to, blockSize: blockSize)
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}
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}
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public func remove(from: Array<UInt8>, blockSize: Int?) -> Array<UInt8> {
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switch self {
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case .noPadding:
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return from //NoPadding().remove(from: from, blockSize: blockSize)
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case .zeroPadding:
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return ZeroPadding().remove(from: from, blockSize: blockSize)
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case .pkcs7:
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return PKCS7.Padding().remove(from: from, blockSize: blockSize)
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case .pkcs5:
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return PKCS5.Padding().remove(from: from, blockSize: blockSize)
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case .eme_pkcs1v15:
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return EMEPKCS1v15Padding().remove(from: from, blockSize: blockSize)
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case .emsa_pkcs1v15:
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return EMSAPKCS1v15Padding().remove(from: from, blockSize: blockSize)
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case .iso78164:
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return ISO78164Padding().remove(from: from, blockSize: blockSize)
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case .iso10126:
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return ISO10126Padding().remove(from: from, blockSize: blockSize)
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}
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}
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}
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