crypto/x509: CertificateRequest does not support attributes not covered by pkix.AttributeTypeAndValueSET #15995
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ianlancetaylor
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x509util.CreateCertificateRequest wraps x509.CreateCertificateRequest and adds support for challengePassword attribute. Adding a new attribute means re-signing the whole CSR, which means importing private methods and types from the x509 package. I hope to eventually submit a CL to the stdlib. Go Issue: golang/go#15995
groob
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x509util.CreateCertificateRequest wraps x509.CreateCertificateRequest and adds support for challengePassword attribute. Adding a new attribute means re-signing the whole CSR, which means importing private methods and types from the x509 package. I hope to eventually submit a CL to the stdlib. Go Issue: golang/go#15995 For micromdm#44.
groob
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x509util.CreateCertificateRequest wraps x509.CreateCertificateRequest and adds support for challengePassword attribute. Adding a new attribute means re-signing the whole CSR, which means importing private methods and types from the x509 package. I hope to eventually submit a CL to the stdlib. Go Issue: golang/go#15995 For micromdm#44. For micromdm#22.
groob
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Jul 9, 2017
x509util.CreateCertificateRequest wraps x509.CreateCertificateRequest and adds support for challengePassword attribute. Adding a new attribute means re-signing the whole CSR, which means importing private methods and types from the x509 package. I hope to eventually submit a CL to the stdlib. Go Issue: golang/go#15995 For micromdm#44. For micromdm#22.
groob
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Jul 9, 2017
x509util.CreateCertificateRequest wraps x509.CreateCertificateRequest and adds support for challengePassword attribute. Adding a new attribute means re-signing the whole CSR, which means importing private methods and types from the x509 package. I hope to eventually submit a CL to the stdlib. Go Issue: golang/go#15995 For #44. For #22.
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Prior to Go 1.5 it was not possible to parse CSRs which included single attributes like challenge password( OID 1.2.840.113549.1.9.7) See cloudflare/cfssl#115
This issue was addressed in CL #8160 cloudflare/go@23fca3d by ignoring those attributes.
Currently there is no good way to parse and marshal a CSR with attributes that don't fit in the structure defined by
pkix.AttributeTypeAndValueSET. Challenge Password is a necessary attribute when implementing the SCEP Protocol which is widely used in IoT and Mobile Device Management environments like the Apple MDM spec.To extract or add a challenge password attribute, the CSR has to be unmarshalled and modified separately from the
x509/crypto. Here's an example workaround which reimplements parsing and marshaling the CertificateRequest type.The
x509/cryptolibrary should have a method for handling special attributes in the CSR. As CL #8160 mentions in the review comments, one possible solution is to add aRawAttributesfield to the CertificateRequest struct.The text was updated successfully, but these errors were encountered: