Revision as of 08:41, 2 November 2023 edit 186.171.19.106 (talk) →Use as a cryptographic primitive: ;;͉͍͓̻͕̺̝͔̭̃͗̄̿̕̕:͍͓̻͕̺̝͔̭͉͍͓̻͕̺̝͔̭͍͓̻͕̺̝͔̭͉͍͓̻͕̺̝͔̭̃͗̄̿̃͗̄̿̃͗̄̿̃͗̄̿̕̕̕̕̕̕̕̕;;;͉͍͓̻͕̺̝͔̭̃͗̄̿̕̕ ͍͓̻͕̺̝͔̭͉͍͓̻͕̺̝͔̭̃͗̄̿̃͗̄̿̕̕̕̕;;;͉͍͓̻͕̺̝͔̭̃͗̄̿̕̕ ;;͉͍͓̻͕̺̝͔̭̃͗̄̿̕̕:͍͓̻͕̺̝͔̭͉͍͓̻͕̺̝͔̭͍͓̻͕̺̝͔̭͉͍͓̻͕̺̝͔̭̃͗̄̿̃͗̄̿̃͗̄̿̃͗̄̿̕̕̕̕̕̕̕̕;;;͉͍͓̻͕̺̝͔̭̃͗̄̿̕̕ ͍͓̻͕̺̝͔̭͉͍͓̻͕̺̝͔̭̃͗̄̿̃͗̄̿̕̕̕̕;;;͉͍͓̻͕̺̝͔̭͍͓̻͕̺̝͔̭̃͗̄̿̃͗̄̿̕̕̕̕;;͉͍͓̻͕̺̝͔̭̃͗̄̿̕̕:͍͓̻͕̺̝͔̭̃͗̄̿̕̕ ;;͉͍͓̻͕̺̝͔̭̃͗̄̿̕̕;͉͍͓̻͕̺̝͔̭̃͗̄̿̕̕:*͍͓̻͕̺̝͔̭͉͍͓̻͕̺̝͔̭̃͗̄̿̃͗̄̿̕̕̕̕;;͉... Tags: Reverted Mobile edit Mobile web edit ← Previous edit		Revision as of 08:44, 2 November 2023 edit undo Chaotic Enby (talk \| contribs) Autopatrolled, Extended confirmed users, Page movers, New page reviewers, Pending changes reviewers, Rollbackers, Temporary account IP viewers 36,727 edits Reverting edit(s) by 186.171.19.106 (talk) to rev. 1182467257 by Citation bot: Vandalism (RW 16.1) Tags: RW Undo Next edit →
Line 18: Encrypting a message does not guarantee that it will remain unchanged while encrypted. Hence, often a [[message authentication code]] is added to a ciphertext to ensure that changes to the ciphertext will be noted by the receiver. Message authentication codes can be constructed from an [[AEAD]] cipher (e.g. [[AES-GCM]]). However, symmetric ciphers cannot be used for [[non-repudiation]] purposes except by involving additional parties.<ref>{{Cite web\|url=http://www.iso.org/cms/render/live/en/sites/isoorg/contents/data/standard/04/47/44736.html\|title=ISO/IEC 13888-2:2010 \|website=ISO\|language=en\|access-date=;;͉͍͓̻͕̺̝͔̭̃͗̄̿̕̕:͍͓̻͕̺̝͔̭͉͍͓̻͕̺̝͔̭͍͓̻͕̺̝͔̭͉͍͓̻͕̺̝͔̭̃͗̄̿̃͗̄̿̃͗̄̿̃͗̄̿̕̕̕̕̕̕̕̕;;;͉͍͓̻͕̺̝͔̭̃͗̄̿̕̕ ͍͓̻͕̺̝͔̭͉͍͓̻͕̺̝͔̭̃͗̄̿̃͗̄̿̕̕̕̕;;;͉͍͓̻͕̺̝͔̭̃͗̄̿̕̕ ;;͉͍͓̻͕̺̝͔̭̃͗̄̿̕̕:͍͓̻͕̺̝͔̭͉͍͓̻͕̺̝͔̭͍͓̻͕̺̝͔̭͉͍͓̻͕̺̝͔̭̃͗̄̿̃͗̄̿̃͗̄̿̃͗̄̿̕̕̕̕̕̕̕̕;;;͉͍͓̻͕̺̝͔̭̃͗̄̿̕̕ ͍͓̻͕̺̝͔̭͉͍͓̻͕̺̝͔̭̃͗̄̿̃͗̄̿̕̕̕̕;;;͉͍͓̻͕̺̝͔̭̃͗̄̿̕̕2020-02-04}}</ref> See the [http://www.iso.org/iso/iso_catalogue/catalogue_tc/catalogue_detail.htm?csnumber=44736 ISO/IEC 13888-2 standard]. Another application is to build [[hash function]]s from block ciphers. See [[one-way compression function]] for descriptions of several such methods.

Symmetric-key algorithm: Difference between revisions