Google/Tink: How use public key to verify signature











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We want to use the Tink library in our project to be able to verify some incoming signatures given a public key.



What we have are the following:




  1. The public key as a string

  2. The signature itself

  3. The plaintext


After going through Tink's documentation, we cannot figure out how to load the public key string so that it can be used by PublicKeyVerifyFactory.



Has anybody done anything similar? Have you found any examples online that could point us to the right direction?






java cryptography digital-signature public-key tink







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  • have you tried storing the public key in the export JSON format and trying to load it using CleartextKeysetHandle.read?
    – Jos Angel George
    Nov 9 at 19:04










  • There is not a single public key format, so to answer the question fully it is required to publish the public key.
    – Maarten Bodewes
    Nov 10 at 0:34















up vote
1
down vote

favorite












We want to use the Tink library in our project to be able to verify some incoming signatures given a public key.



What we have are the following:




  1. The public key as a string

  2. The signature itself

  3. The plaintext


After going through Tink's documentation, we cannot figure out how to load the public key string so that it can be used by PublicKeyVerifyFactory.



Has anybody done anything similar? Have you found any examples online that could point us to the right direction?






java cryptography digital-signature public-key tink







share|improve this question
























  • have you tried storing the public key in the export JSON format and trying to load it using CleartextKeysetHandle.read?
    – Jos Angel George
    Nov 9 at 19:04










  • There is not a single public key format, so to answer the question fully it is required to publish the public key.
    – Maarten Bodewes
    Nov 10 at 0:34













up vote
1
down vote

favorite









up vote
1
down vote

favorite











We want to use the Tink library in our project to be able to verify some incoming signatures given a public key.



What we have are the following:




  1. The public key as a string

  2. The signature itself

  3. The plaintext


After going through Tink's documentation, we cannot figure out how to load the public key string so that it can be used by PublicKeyVerifyFactory.



Has anybody done anything similar? Have you found any examples online that could point us to the right direction?






java cryptography digital-signature public-key tink







share|improve this question















We want to use the Tink library in our project to be able to verify some incoming signatures given a public key.



What we have are the following:




  1. The public key as a string

  2. The signature itself

  3. The plaintext


After going through Tink's documentation, we cannot figure out how to load the public key string so that it can be used by PublicKeyVerifyFactory.



Has anybody done anything similar? Have you found any examples online that could point us to the right direction?






java cryptography digital-signature public-key tink




java cryptography digital-signature public-key tink






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 9 at 17:33

























asked Nov 9 at 15:18









Alex

6,10973143




6,10973143












  • have you tried storing the public key in the export JSON format and trying to load it using CleartextKeysetHandle.read?
    – Jos Angel George
    Nov 9 at 19:04










  • There is not a single public key format, so to answer the question fully it is required to publish the public key.
    – Maarten Bodewes
    Nov 10 at 0:34


















  • have you tried storing the public key in the export JSON format and trying to load it using CleartextKeysetHandle.read?
    – Jos Angel George
    Nov 9 at 19:04










  • There is not a single public key format, so to answer the question fully it is required to publish the public key.
    – Maarten Bodewes
    Nov 10 at 0:34
















have you tried storing the public key in the export JSON format and trying to load it using CleartextKeysetHandle.read?
– Jos Angel George
Nov 9 at 19:04




have you tried storing the public key in the export JSON format and trying to load it using CleartextKeysetHandle.read?
– Jos Angel George
Nov 9 at 19:04












There is not a single public key format, so to answer the question fully it is required to publish the public key.
– Maarten Bodewes
Nov 10 at 0:34




There is not a single public key format, so to answer the question fully it is required to publish the public key.
– Maarten Bodewes
Nov 10 at 0:34

















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