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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,127 @@ | ||
| package cert | ||
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| import "encoding/asn1" | ||
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| type GeneralNames []GeneralName | ||
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| type OtherName struct { | ||
| TypeId asn1.ObjectIdentifier | ||
| Value asn1.RawValue `asn1:"optional"` | ||
| } | ||
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| // OtherName ::= SEQUENCE { | ||
| // type-id OBJECT IDENTIFIER, | ||
| // value [0] EXPLICIT ANY DEFINED BY type-id } | ||
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| // GeneralName ::= CHOICE { | ||
| // otherName [0] OtherName, | ||
| // rfc822Name [1] IA5String, | ||
| // dNSName [2] IA5String, | ||
| // x400Address [3] ORAddress, | ||
| // directoryName [4] Name, | ||
| // ediPartyName [5] EDIPartyName, | ||
| // uniformResourceIdentifier [6] IA5String, | ||
| // iPAddress [7] OCTET STRING, | ||
| // registeredID [8] OBJECT IDENTIFIER } | ||
| // | ||
| // TODO - decode raw values, switch on generalName.Tag - https://github.com/golang/go/issues/13999 | ||
| // return string (key), string (values) | ||
| type GeneralName struct { | ||
| OtherName asn1.RawValue `asn1:"tag:0,optional"` | ||
| Rfc822Name asn1.RawValue `asn1:"tag:1,optional"` | ||
| DNSName asn1.RawValue `asn1:"tag:2,optional"` | ||
| X400Address asn1.RawValue `asn1:"tag:3,optional"` | ||
| DirectoryName asn1.RawValue `asn1:"tag:4,optional"` | ||
| EdiPartyName asn1.RawValue `asn1:"tag:5,optional"` | ||
| UniformResourceIdentifier asn1.RawValue `asn1:"tag:6,optional"` | ||
| IPAddress asn1.RawValue `asn1:"tag:7,optional"` | ||
| RegisteredID asn1.RawValue `asn1:"tag:8,optional"` | ||
| } | ||
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| // CRLDistributionPoints ::= SEQUENCE SIZE (1..MAX) OF DistributionPoint | ||
| type CRLDistributionPoints []DistributionPoint | ||
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| // DistributionPoint ::= SEQUENCE { | ||
| // distributionPoint [0] DistributionPointName OPTIONAL, | ||
| // reasons [1] ReasonFlags OPTIONAL, | ||
| // cRLIssuer [2] GeneralNames OPTIONAL } | ||
| type DistributionPoint struct { | ||
| DistributionPoint DistributionPointName `asn1:"tag:0,optional"` | ||
| Reasons asn1.BitString `asn1:"tag:1,optional"` // reasonFlags | ||
| CRLIssuer GeneralNames `asn1:"tag:2,optional"` | ||
| } | ||
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| // DistributionPointName ::= CHOICE { | ||
| // fullName [0] GeneralNames, | ||
| // nameRelativeToCRLIssuer [1] RelativeDistinguishedName } | ||
| type DistributionPointName struct { | ||
| FullName GeneralNames `asn1:"tag:0,optional"` // GeneralNames | ||
| NameRelativeToCRLIssuer asn1.RawValue `asn1:"tag:1,optional"` // RelativeDistinguishedName | ||
| } | ||
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| // AuthorityKeyIdentifier ::= SEQUENCE { | ||
| // keyIdentifier [0] KeyIdentifier OPTIONAL, | ||
| // authorityCertIssuer [1] GeneralNames OPTIONAL, | ||
| // authorityCertSerialNumber [2] CertificateSerialNumber OPTIONAL } | ||
| // -- authorityCertIssuer and authorityCertSerialNumber MUST both | ||
| // -- be present or both be absent | ||
| type AuthorityKeyIdentifier struct { | ||
| KeyIdentifier asn1.RawValue `asn1:"tag:0,optional"` // KeyIdentifier OCTET STRING | ||
| AuthorityCertIssuer GeneralNames `asn1:"tag:1,optional"` // GeneralNames | ||
| AuthorityCertSerialNumber int `asn1:"tag:2,optional"` // CertificateSerialNumber | ||
| } | ||
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| // BasicConstraints ::= SEQUENCE { | ||
| // cA BOOLEAN DEFAULT FALSE, | ||
| // pathLenConstraint INTEGER (0..MAX) OPTIONAL } | ||
| type BasicConstraints struct { | ||
| CA bool `asn1:"optional"` | ||
| PathLenConstraint int `asn1:"optional"` | ||
| } | ||
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| // --- bit strings and conversions --- | ||
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| var reasonFlags = []string{ | ||
| "unused", | ||
| "keyCompromise", | ||
| "cACompromise", | ||
| "affiliationChanged", | ||
| "superseded", | ||
| "cessationOfOperation", | ||
| "certificateHold", | ||
| "privilegeWithdrawn", | ||
| "aACompromise", | ||
| } | ||
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| func toReasonFlag(in asn1.BitString) []string { | ||
| var out []string | ||
| for i, v := range reasonFlags { | ||
| if in.At(i) != 0 { | ||
| out = append(out, v) | ||
| } | ||
| } | ||
| return out | ||
| } | ||
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| // order is important! | ||
| var keyUsage = []string{ | ||
| "Digital Signature", | ||
| "Content Commitment", // renamed from non repudiation | ||
| "Key Encipherment", | ||
| "Data Encipherment", | ||
| "Key Agreement", | ||
| "Key Cert Sign", | ||
| "CRLs Sign", | ||
| "Encipher Only", | ||
| "Decipher Only", | ||
| } | ||
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| func toKeyUsage(in asn1.BitString) []string { | ||
| var out []string | ||
| for i, v := range keyUsage { | ||
| if in.At(i) != 0 { | ||
| out = append(out, v) | ||
| } | ||
| } | ||
| return out | ||
| } |