Re: Creating a Json Web Key

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On 08/02/18 18:17, Angus Robertson - Magenta Systems Ltd wrote:
> I need to create a Jose JWK from the public part of a private key in a
> PEVP_PKEY, with 1.1.0.  
> 
> I've done it using the old struct rsa_st from 1.0.2 and
> EVP_PKEY_get1_RSA, and then converting the n and e BIGNUMs to binary
> (and then to Base64Url).  
> 
> This still works in 1.1.0 although rsa_st has more stuff after n and e,
> but obviously is not ideal.  I've not yet found any helpers for getting
> n and e any other way. 

RSA_get0_key()?

https://www.openssl.org/docs/man1.1.0/crypto/RSA_get0_key.html

Matt


> 
> Is there a better way to build a JWK? 
> 
> Now need to handle elliptic curve keys as well. 
> 
> Angus
> 
> 
>  
> 
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