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2026

Archived version 1 of 2. This is how the model read before it was corrected. It is shown read only. The current version is here.

Cryptographic Autonomy License 1.0

Also known as CAL, CAL-1.0, Cryptographic Autonomy License, Cryptographic Autonomy License 1.0.

Commercial use
allowed
Share alike
required
Attribution
required (keep the copyright and license notices)
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Canonical URI https://dalicc.net/licenselibrary/CAL-1.0

Permissions

  • Change license from the text Replacing the license of the work, or of an adaptation, with another license, or changing its terms.

    Duties

    • Use a compliant license from the text Choosing a replacement license that stays compliant with the terms of the original license.
  • Commercial use from the text Using the work to generate income, directly or indirectly, for example by selling it or by using it in advertising.
  • Derivative works from the text Distributing an adaptation of the work and making it available to the public.
  • Derive from the text Creating a new work from the work, such as a translation, adaptation or arrangement of it or of a part of it.

    Duties

    • Add statement from the text Attaching terms, notices or statements of one's own to the work or to one's modifications when passing it on.
    • Attribution from the text Giving credit to the copyright holders or authors of the work, in the form the licensor asks for.
    • Notice from the text Notice: keeping the license and copyright notices with every copy.
    • Source code from the text Providing access to the source code of the work with every copy distributed.
  • Display from the text Showing the work to the public without making a copy the viewer keeps.
  • Distribute from the text Providing copies of the work to the public or to anyone else.

    Duties

    • Add statement from the text Attaching terms, notices or statements of one's own to the work or to one's modifications when passing it on.
    • Attribution from the text Giving credit to the copyright holders or authors of the work, in the form the licensor asks for.
    • Notice from the text Notice: keeping the license and copyright notices with every copy.
    • Provide user data from the text Handing a recipient a no-charge copy, in a commonly used electronic form, of the data about that recipient which the licensee holds because of the work.
    • Source code from the text Providing access to the source code of the work with every copy distributed.
  • Modified works from the text Distributing a modified version of the work that does not amount to a new, derivative work.
  • Modify from the text Altering the work, for example by updating it, without creating a new work; an alteration that creates a new work is Derive.

    Duties

    • Add statement from the text Attaching terms, notices or statements of one's own to the work or to one's modifications when passing it on.
    • Attribution from the text Giving credit to the copyright holders or authors of the work, in the form the licensor asks for.
    • Notice from the text Notice: keeping the license and copyright notices with every copy.
    • Source code from the text Providing access to the source code of the work with every copy distributed.
  • Network use trigger from the text Making the work available over a network, deploying it or providing a service with it.

    Duties

    • Provide user data from the text Handing a recipient a no-charge copy, in a commonly used electronic form, of the data about that recipient which the licensee holds because of the work.
    • Source code from the text Providing access to the source code of the work with every copy distributed.
  • Patent grant from the text Granting a license under the patent claims that a contributor holds and that the contribution necessarily infringes.
  • Present from the text Performing the work in public, including by broadcast or other communication to the public.
  • Reproduce from the text Making copies of the work in any form.

Prohibitions

  • Add limitation from the text Not permitted: Add limitation. Adding further limitations or restrictions to the license terms when passing the work on.
  • Apply technical protection measures from the text Not permitted: Apply technical protection measures. Applying technological measures that control access to the work or its use.
  • Promote from the text Not permitted: Promote. Using the name or trademarks of the licensor or of contributors to endorse or promote a product.
  • Sublicense from the text Not permitted: Sublicense. Granting a third party rights in the work under a license of the licensee's own, rather than passing on the original license.

License-wide duties

  • Share alike from the text Adaptations have to be licensed under the same license or one the license names as compatible.

Further terms

These are the things the license says about itself beyond the acts it permits, forbids and requires: when it ends, how long there is to put a breach right, which law governs it, and so on. A term that comes from the DALICC vocabulary links to its definition.

Patent license ends if you sue
Yes. Not a ban on suing: a patent claim over the work ends the patent license, or the whole license, as the text provides.
Terminates on breach
Yes

Clauses

Warranty disclaimer

As far as the law allows, the Work comes AS-IS, without any warranty of any kind, and no Licensor or contributor will be liable to anyone for any damages related to this software or this license, under any kind of legal claim, or for any type of damages, including indirect, special, incidental, or consequential damages of any type arising as a result of this License or the use of the Work including, without limitation, damages for loss of goodwill, work stoppage, computer failure or malfunction, loss of profits, revenue, or any and all other commercial damages or losses.

Additional clauses

Subject to the exception in section 4.4, You must provide to each Recipient a copy of, or no-charge unrestricted network access to, the Source Code corresponding to the Work ("Access").

Info

Target asset types
Software
Region / jurisdiction
Worldwide
Validity
Perpetual
Source
https://opensource.org/license/CAL-1.0
Legal code
http://cryptographicautonomylicense.com/license-text.html
This description is published under
https://dalicc.net/licenselibrary/CC-BY-4.0
SPDX identifier
CAL-1.0 on the SPDX license list
DALICC identifier
CAL-1.0

This record is published under CC BY 4.0. Credit it as: DALICC License Library, DALICC - Verein zur Förderung der Rechtssicherheit in der Datenbewirtschaftung, https://dalicc.net, CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). The license it describes belongs to its publisher.

History

This license model has 2 versions. Version 2 is the one served today; every earlier version keeps its own address, so a conclusion drawn from one of them can still be checked against it.

  1. Version 2 current2026-09-24 Giray Havur

    The changes since version 1 recorded which sentence of the text each statement rests on and named the license the record itself is published under.

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    7 changes

    • changed duty cc:ShareAlike

      was duty cc:ShareAlike

      Manual edit The statement now quotes the sentence of the licence text it rests on: "The Source Code corresponding to the modifications in the Modified Work must be provided to the Recipient either a) under this License, or b) under a Compatible Open Source License."

    • changed permission dalicc:ChangeLicense with duties [dalicc:compliantLicense]

      was permission dalicc:ChangeLicense with duties [dalicc:compliantLicense]

      Manual edit Its duty dalicc:compliantLicense is marked as a library convention, family rule 13: Reciprocity has one shape per kind.

    • changed permission dalicc:networkUseTrigger with duties [cc:SourceCode, dalicc:provideUserData]

      was permission dalicc:networkUseTrigger with duties [cc:SourceCode, dalicc:provideUserData]

      Manual edit Its duty cc:SourceCode quotes "You must retain all licensing, authorship, or attribution notices contained in the Source Code (the "Notices"), and provide all such Notices to each Recipient, together with a statement acknowledging the use of the Work."

    • changed permission odrl:derive with duties [cc:Attribution, cc:Notice, cc:SourceCode, dalicc:addStatement]

      was permission odrl:derive with duties [cc:Attribution, cc:Notice, cc:SourceCode, dalicc:addStatement]

      Manual edit Its duty cc:Attribution quotes "You must retain all licensing, authorship, or attribution notices contained in the Source Code (the "Notices"), and provide all such Notices to each Recipient, together with a statement acknowledging the use of the Work." Its duty cc:Notice quotes "You must retain all licensing, authorship, or attribution notices contained in the Source Code (the "Notices"), and provide all such Notices to each Recipient, together with a statement acknowledging the use of the Work." Its duty cc:SourceCode quotes "You must retain all licensing, authorship, or attribution notices contained in the Source Code (the "Notices"), and provide all such Notices to each Recipient, together with a statement acknowledging the use of the Work." Its duty dalicc:addStatement quotes "You must retain all licensing, authorship, or attribution notices contained in the Source Code (the "Notices"), and provide all such Notices to each Recipient, together with a statement acknowledging the use of the Work."

    • changed permission odrl:distribute with duties [cc:Attribution, cc:Notice, cc:SourceCode, dalicc:addStatement, dalicc:provideUserData]

      was permission odrl:distribute with duties [cc:Attribution, cc:Notice, cc:SourceCode, dalicc:addStatement, dalicc:provideUserData]

      Manual edit Its duty cc:Attribution quotes "You must retain all licensing, authorship, or attribution notices contained in the Source Code (the "Notices"), and provide all such Notices to each Recipient, together with a statement acknowledging the use of the Work." Its duty cc:Notice quotes "You must retain all licensing, authorship, or attribution notices contained in the Source Code (the "Notices"), and provide all such Notices to each Recipient, together with a statement acknowledging the use of the Work." Its duty cc:SourceCode quotes "You must retain all licensing, authorship, or attribution notices contained in the Source Code (the "Notices"), and provide all such Notices to each Recipient, together with a statement acknowledging the use of the Work." Its duty dalicc:addStatement quotes "You must retain all licensing, authorship, or attribution notices contained in the Source Code (the "Notices"), and provide all such Notices to each Recipient, together with a statement acknowledging the use of the Work."

    • changed permission odrl:modify with duties [cc:Attribution, cc:Notice, cc:SourceCode, dalicc:addStatement]

      was permission odrl:modify with duties [cc:Attribution, cc:Notice, cc:SourceCode, dalicc:addStatement]

      Manual edit Its duty cc:Attribution quotes "You must retain all licensing, authorship, or attribution notices contained in the Source Code (the "Notices"), and provide all such Notices to each Recipient, together with a statement acknowledging the use of the Work." Its duty cc:Notice quotes "You must retain all licensing, authorship, or attribution notices contained in the Source Code (the "Notices"), and provide all such Notices to each Recipient, together with a statement acknowledging the use of the Work." Its duty cc:SourceCode quotes "You must retain all licensing, authorship, or attribution notices contained in the Source Code (the "Notices"), and provide all such Notices to each Recipient, together with a statement acknowledging the use of the Work." Its duty dalicc:addStatement quotes "You must retain all licensing, authorship, or attribution notices contained in the Source Code (the "Notices"), and provide all such Notices to each Recipient, together with a statement acknowledging the use of the Work."

    • added dct:license <https://creativecommons.org/licenses/by/4.0/>

      Manual edit Every record is published under CC BY 4.0. cc:license names the record DALICC keeps of that licence; dct:license now names it by the address Creative Commons publishes it at, so that a consumer matching the canonical IRI finds it.

  2. Version 1

    Created from the license text on 2026-09-15 (Reciprocal and source-available).

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Every change names the reason behind it: a finding of the content review, one of its library-wide decisions, the metadata that review wrote onto every record, or a hand edit. None of it is legal advice.

Nothing on this page is legal advice. What a license means is decided by its text; ask a legal advisor before you rely on it.