ISO 20038:2017 defines a method for packaging cryptographic keys for transport. This method can also be used for the storage of keys under an AES key. The method uses the block cipher AES as the wrapping cipher algorithm. Other methods for wrapping keys are outside the scope of this document but can use the authenticated encryption algorithms specified in ISO/IEC 19772.

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ISO/TR 14742:2010 provides a list of recommended cryptographic algorithms for use within applicable financial services standards prepared by ISO/TC 68. It also provides strategic guidance on key lengths and associated parameters and usage dates. The focus is on algorithms rather than protocols, and protocols are in general not included in ISO/TR 14742:2010. ISO/TR 14742:2010 deals primarily with recommendations regarding algorithms and key lengths. The categories of algorithms covered in ISO/TR 14742:2010 are: block ciphers; stream ciphers; hash functions; message authentication codes (MACs); asymmetric algorithms; digital signature schemes giving message recovery, digital signatures with appendix, asymmetric ciphers; authentication mechanisms; key establishment and agreement mechanisms; key transport mechanisms. ISO/TR 14742:2010 does not define any cryptographic algorithms; however, the standards to which ISO/TR 14742:2010 refers may contain necessary implementation information as well as more detailed guidance regarding choice of security parameters, security analysis, and other implementation considerations.

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ISO/TR 19038:2005 provides the user with technical support and details for the safe and efficient implementation of the Triple Data Encryption Algorithm (TDEA) modes of operation for the enhanced cryptographic protection of digital data. The modes of operation described therein are specified for both enciphering and deciphering operations. The modes described in this Technical Report are implementations of the block cipher modes of operation specified in ISO/IEC 10116 using the Triple DEA algorithm (TDEA) specified in ISO/IEC 18033-3. The TDEA modes of operation may be used in both wholesale and retail financial applications. The use of ISO/TR 19038:2005 provides the basis for the interoperability of products and facilitates the development of application standards that use the TDEA modes of operation. This Technical Report is intended for use with other ISO standards using DEA.

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Gives terms and definitions. Defines procedures in order to protect financial messages exchanged through any communications architecture. Annex A forms an integral part of this standard. Annexes B, C and D are for information only.

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DEA may be used as a suitable algorithm to implement ISO 10126-1, and is specified in ANSI X3.92. Keys shall be managed in accordance with ISO 8732.

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