ASN.1 Decoder

Input

Output

OIDs

0.2.262.1.10.0,extension
0.2.262.1.10.1.1,signature
1.2.840.113549.1.1,pkcs-1
1.2.840.113549.1.1.1,rsaEncryption
1.2.840.113549.1.1.4,md5withRSAEncryption
1.2.840.113549.1.1.5,sha1withRSAEncryption
1.2.840.113549.1.1.6,rsaOAEPEncryptionSET
1.2.840.113549.1.7,pkcs-7
1.2.840.113549.1.7.1,data
1.2.840.113549.1.7.2,signedData
1.2.840.113549.1.7.3,envelopedData
1.2.840.113549.1.7.4,signedAndEnvelopedData
1.2.840.113549.1.7.5,digestedData
1.2.840.113549.1.7.6,encryptedData
1.2.840.113549.1.7.7,dataWithAttributes
1.2.840.113549.1.7.8,encryptedPrivateKeyInfo
1.2.840.113549.1.9.22.1,x509Certificate(for.PKCS.#12)
1.2.840.113549.1.9.23.1,x509Crl(for.PKCS.#12)
1.2.840.113549.1.9.3,contentType
1.2.840.113549.1.9.4,messageDigest
1.2.840.113549.1.9.5,signingTime
2.16.840.1.113730.1,cert-extension
2.16.840.1.113730.1.1,netscape-cert-type
2.16.840.1.113730.1.12,netscape-ssl-server-name
2.16.840.1.113730.1.13,netscape-comment
2.16.840.1.113730.1.2,netscape-base-url
2.16.840.1.113730.1.3,netscape-revocation-url
2.16.840.1.113730.1.4,netscape-ca-revocation-url
2.16.840.1.113730.1.7,netscape-cert-renewal-url
2.16.840.1.113730.1.8,netscape-ca-policy-url
2.23.42.0,contentType
2.23.42.1,msgExt
2.23.42.10,national
2.23.42.2,field
2.23.42.2.0,fullName
2.23.42.2.1,givenName
2.23.42.2.10,amount
2.23.42.2.2,familyName
2.23.42.2.3,birthFamilyName
2.23.42.2.4,placeName
2.23.42.2.5,identificationNumber
2.23.42.2.6,month
2.23.42.2.7,date
2.23.42.2.7.11,accountNumber
2.23.42.2.7.12,passPhrase
2.23.42.2.8,address
2.23.42.3,attribute
2.23.42.3.0,cert
2.23.42.3.0.0,rootKeyThumb
2.23.42.3.0.1,additionalPolicy
2.23.42.4,algorithm
2.23.42.5,policy
2.23.42.5.0,root
2.23.42.6,module
2.23.42.7,certExt
2.23.42.7.0,hashedRootKey
2.23.42.7.1,certificateType
2.23.42.7.2,merchantData
2.23.42.7.3,cardCertRequired
2.23.42.7.5,setExtensions
2.23.42.7.6,setQualifier
2.23.42.8,brand
2.23.42.9,vendor
2.23.42.9.22,eLab
2.23.42.9.31,espace-net
2.23.42.9.37,e-COMM
2.5.29.1,authorityKeyIdentifier
2.5.29.10,basicConstraints
2.5.29.11,nameConstraints
2.5.29.12,policyConstraints
2.5.29.13,basicConstraints
2.5.29.14,subjectKeyIdentifier
2.5.29.15,keyUsage
2.5.29.16,privateKeyUsagePeriod
2.5.29.17,subjectAltName
2.5.29.18,issuerAltName
2.5.29.19,basicConstraints
2.5.29.2,keyAttributes
2.5.29.20,cRLNumber
2.5.29.21,cRLReason
2.5.29.22,expirationDate
2.5.29.23,instructionCode
2.5.29.24,invalidityDate
2.5.29.25,cRLDistributionPoints
2.5.29.26,issuingDistributionPoint
2.5.29.27,deltaCRLIndicator
2.5.29.28,issuingDistributionPoint
2.5.29.29,certificateIssuer
2.5.29.3,certificatePolicies
2.5.29.30,nameConstraints
2.5.29.31,cRLDistributionPoints
2.5.29.32,certificatePolicies
2.5.29.33,policyMappings
2.5.29.34,policyConstraints
2.5.29.35,authorityKeyIdentifier
2.5.29.36,policyConstraints
2.5.29.37,extKeyUsage
2.5.29.4,keyUsageRestriction
2.5.29.5,policyMapping
2.5.29.6,subtreesConstraint
2.5.29.7,subjectAltName
2.5.29.8,issuerAltName
2.5.29.9,subjectDirectoryAttributes
2.5.4.0,objectClass
2.5.4.1,aliasedEntryName
2.5.4.10,organizationName
2.5.4.10.1,collectiveOrganizationName
2.5.4.11,organizationalUnitName
2.5.4.11.1,collectiveOrganizationalUnitName
2.5.4.12,title
2.5.4.13,description
2.5.4.14,searchGuide
2.5.4.15,businessCategory
2.5.4.16,postalAddress
2.5.4.16.1,collectivePostalAddress
2.5.4.17,postalCode
2.5.4.17.1,collectivePostalCode
2.5.4.18,postOfficeBox
2.5.4.18.1,collectivePostOfficeBox
2.5.4.19,physicalDeliveryOfficeName
2.5.4.19.1,collectivePhysicalDeliveryOfficeName
2.5.4.2,knowledgeInformation
2.5.4.20,telephoneNumber
2.5.4.20.1,collectiveTelephoneNumber
2.5.4.21,telexNumber
2.5.4.21.1,collectiveTelexNumber
2.5.4.22.1,collectiveTeletexTerminalIdentifier
2.5.4.23,facsimileTelephoneNumber
2.5.4.23.1,collectiveFacsimileTelephoneNumber
2.5.4.25,internationalISDNNumber
2.5.4.25.1,collectiveInternationalISDNNumber
2.5.4.26,registeredAddress
2.5.4.27,destinationIndicator
2.5.4.28,preferredDeliveryMehtod
2.5.4.29,presentationAddress
2.5.4.3,commonName
2.5.4.31,member
2.5.4.32,owner
2.5.4.33,roleOccupant
2.5.4.34,seeAlso
2.5.4.35,userPassword
2.5.4.36,userCertificate
2.5.4.37,caCertificate
2.5.4.38,authorityRevocationList
2.5.4.39,certificateRevocationList
2.5.4.4,surname
2.5.4.40,crossCertificatePair
2.5.4.41,name
2.5.4.42,givenName
2.5.4.43,initials
2.5.4.44,generationQualifier
2.5.4.45,uniqueIdentifier
2.5.4.46,dnQualifier
2.5.4.47,enhancedSearchGuide
2.5.4.48,protocolInformation
2.5.4.49,distinguishedName
2.5.4.5,serialNumber
2.5.4.50,uniqueMember
2.5.4.51,houseIdentifier
2.5.4.52,supportedAlgorithms
2.5.4.53,deltaRevocationList
2.5.4.55,clearance
2.5.4.58,crossCertificatePair
2.5.4.6,countryName
2.5.4.7,localityName
2.5.4.7.1,collectiveLocalityName
2.5.4.8,stateOrProvinceName
2.5.4.8.1,collectiveStateOrProvinceName
2.5.4.9,streetAddress
2.5.4.9.1,collectiveStreetAddress
2.5.6.0,top
2.5.6.1,alias
2.5.6.10,residentialPerson
2.5.6.11,applicationProcess
2.5.6.12,applicationEntity
2.5.6.13,dSA
2.5.6.14,device
2.5.6.15,strongAuthenticationUser
2.5.6.16,certificateAuthority
2.5.6.17,groupOfUniqueNames
2.5.6.2,country
2.5.6.21,pkiUser
2.5.6.22,pkiCA
2.5.6.3,locality
2.5.6.4,organization
2.5.6.5,organizationalUnit
2.5.6.6,person
2.5.6.7,organizationalPerson
2.5.6.8,organizationalRole
2.5.6.9,groupOfNames
2.5.8,X.500-Algorithms
2.5.8.1,X.500-Alg-Encryption
2.5.8.1.1,rsa
2.54.1775.2,hashedRootKey
2.54.1775.3,certificateType
2.54.1775.4,merchantData
2.54.1775.5,cardCertRequired
2.54.1775.7,setQualifier
2.54.1775.99,set-data
1.2.840.10045.4.3.1,ecdsa-with-Sha224
1.2.840.10045.4.3.2,ecdsa-with-Sha256
1.2.840.10045.4.3.3,ecdsa-with-Sha384
1.2.840.10045.4.3.4,ecdsa-with-Sha512
1.2.840.10045.2.1,ecPublicKey
1.2.840.10045.3.1.7,prime256v1
1.2.840.113533.7.65.0,entrustVersInfo
2.23.136.1.1.3,id-icao-cscaMasterListSigningKey
1.3.14.3.2.26,sha1
2.16.840.1.101.3.4.2.4,sha224
2.16.840.1.101.3.4.2.1,sha256
2.16.840.1.101.3.4.2.2,sha384
2.16.840.1.101.3.4.2.3,sha512
1.2.840.113549.1.1.8,id-mgf1
2.5.6.19,cRLDistributionPoint
2.5.8.1.1,rsa
2.5.8.2.1,sqMod_n
2.5.8.3.1,sqMod_nWithRSA
1.3.14.3.2.6,desECB
1.3.14.3.2.7,desCBC
1.3.14.3.2.8,desOFB
1.3.14.3.2.9,desCFB
1.3.14.3.2.10,desMAC
1.3.14.3.2.12,dsa
1.3.14.7.2.1.1,elGamal
1.3.14.7.2.3.2,md2WithElGamal
1.2.840.113549.2.2,md2
1.2.840.113549.2.5,md5
1.2.840.113549.1.1.1,rsaEncryption
1.2.840.113549.1.1.7,rsaOAEP
1.2.840.10040.4.1,dsaX957
1.2.840.10045.2.1,ecPublicKey
1.2.840.10045.2.2,ecPublicKeyRestricted
1.3.132.1.12,ecDH
1.3.132.1.13,ecMQV
1.2.840.10045.3.1.1,P-192
1.3.132.0.33,P-224
1.2.840.10045.3.1.7,P-256
1.3.132.0.34,P-384
1.3.132.0.35,P-521
1.3.132.0.1,K-163
1.3.132.0.15,B-163
1.3.132.0.26,K-233
1.3.132.0.27,B-233
1.3.132.0.16,K-283
1.3.132.0.17,B-283
1.3.132.0.36,K-409
1.3.132.0.37,B-409
1.3.132.0.38,K-571
1.3.132.0.39,B-571
1.3.132.0.9,ansix9p160k1
1.3.132.0.8,ansix9p160r1
1.3.132.0.30,ansix9p160r2
1.3.132.0.31,ansix9p192k1
1.3.132.0.32,ansix9p224k1
1.3.132.0.10,ansix9p256k1
1.3.132.0.2,ansix9t163r1
1.3.132.0.24,ansix9t193r1
1.3.132.0.25,ansix9t193r2
1.3.132.0.3,ansix9t239k1
1.3.36.3.3.2.8.1.1.1,brainpoolP160r1
1.3.36.3.3.2.8.1.1.2,brainpoolP160t1
1.3.36.3.3.2.8.1.1.3,brainpoolP192r1
1.3.36.3.3.2.8.1.1.4,brainpoolP192t1
1.3.36.3.3.2.8.1.1.5,brainpoolP224r1
1.3.36.3.3.2.8.1.1.6,brainpoolP224t1
1.3.36.3.3.2.8.1.1.7,brainpoolP256r1
1.3.36.3.3.2.8.1.1.8,brainpoolP256t1
1.3.36.3.3.2.8.1.1.9,brainpoolP320r1
1.3.36.3.3.2.8.1.1.10,brainpoolP320t1
1.3.36.3.3.2.8.1.1.11,brainpoolP384r1
1.3.36.3.3.2.8.1.1.12,brainpoolP384t1
1.3.36.3.3.2.8.1.1.13,brainpoolP512r1
1.3.36.3.3.2.8.1.1.14,brainpoolP512t1
2.16.840.1.114027.80.2.1,id-PKIXCMP-stdECDHwithX963SHA1
1.2.840.113549.1.1.2,md2WithRSAEncryption
1.2.840.113549.1.1.4,md5WithRSAEncryption
1.2.840.113549.1.1.5,sha1WithRSAEncryption
1.2.840.113549.1.1.14,sha224WithRSAEncryption
1.2.840.113549.1.1.11,sha256WithRSAEncryption
1.2.840.113549.1.1.12,sha384WithRSAEncryption
1.2.840.113549.1.1.13,sha512WithRSAEncryption
1.2.840.113549.1.1.10,id-RSASSA-PSS
1.2.840.10040.4.3,dsa-with-sha1X957
1.2.840.10045.4.1,ecdsa-with-sha1
1.2.840.10045.4.2,ecdsa-with-Recommended
1.2.840.10045.4.3,ecdsa-with-Specified
1.2.840.10045.4.3.1,ecdsa-with-SHA224
1.2.840.10045.4.3.2,ecdsa-with-SHA256
1.2.840.10045.4.3.3,ecdsa-with-SHA384
1.2.840.10045.4.3.4,ecdsa-with-SHA512
1.3.14.7.2.3.1,md2WithRsa
1.3.14.3.2.2,md4WithRSA
1.3.14.3.2.3,md5WithRSA
1.3.14.3.2.4,md4WithRSAEncryption
1.3.14.3.2.29,sha1WithRSASignature
1.3.14.3.2.27,dsa-with-sha1
1.2.840.113533.7.68.0,entrustCAInfo
1.2.840.113533.7.68.16,entrustPwordPolicy
1.2.840.113533.7.68.29,entrustUserRole
1.2.840.113533.7.77.0,entrustRoleMap
1.2.840.113533.7.77.1,entrustPasswordRules
1.2.840.113533.7.77.3,entrustAllowedSymmetricAlgms
1.2.840.113533.7.77.4,entrustAllowedHashAlgms
1.2.840.113533.7.77.5,entrustCSetFlags
1.2.840.113533.7.77.6,entrustMessageOfTheDay
1.2.840.113533.7.77.7,entrustAttrName
1.2.840.113533.7.77.8,entrustApplicationFlags
1.2.840.113533.7.77.9,entrustSignKeyType
1.2.840.113533.7.77.10,entrustEncKeyType
1.2.840.113533.7.77.11,entrustBusCtrlPolOids
1.2.840.113533.7.77.12,entrustBusCtrlFlags
1.2.840.113533.7.77.13,entrustPCertLifetime
1.2.840.113533.7.77.14,entrustDNEncoding
1.2.840.113533.7.77.15,entrustCertConsistencyChecking
1.2.840.113533.7.77.16,entrustUserEncAlgm
1.2.840.113533.7.77.17,entrustCRLGracePeriod
1.2.840.113533.7.77.18,entrustSkipRLChecks
1.2.840.113533.7.77.19,entrustHTTPProxySetting
1.2.840.113533.7.77.20,entrustOfflineProfileUse
1.2.840.113533.7.77.21,entrustAllowServerLogin
1.2.840.113533.7.77.22,entrustEnforceIdentityUse
1.2.840.113533.7.77.23,entrustAllowPKCS12Export
1.2.840.113533.7.77.24,entrustPKCS12ExportMinimumHashCount
1.2.840.113533.7.77.25,entrustClientNKeyType
1.2.840.113533.7.77.26,entrustAllowed3rdPartySymmetricAlgms
1.2.840.113533.7.77.27,entrustPreventManualAppRegistration
1.2.840.113533.7.77.28,entrustPasswordMaxAttempts
1.2.840.113533.7.77.29,entrustPasswordMinTime
1.2.840.113533.7.77.30,entrustPasswordMinSuspend
1.2.840.113533.7.77.31,entrustAllowCAPIExport
1.2.840.113533.7.77.32,entrustICEAdminPolicy
1.2.840.113533.7.77.33,entrustEnableCacheUsage
1.2.840.113533.7.77.34,entrustUserEncAlgm2
1.2.840.113533.7.77.35,entrustSecureDeliveryServiceSMTP
1.2.840.113533.7.77.36,entrustContentScannerServiceSMTP
1.2.840.113533.7.77.37,entrustExpressSearchSourceOrder
1.2.840.113533.7.77.38,entrustCAPIPolicy
1.2.840.113533.7.77.39,entrustSearchbaseSearchOrder
1.2.840.113533.7.77.40,entrustCRLGracePercentage
1.2.840.113533.7.77.49,entrustPublicTokenCerts
1.2.840.113533.7.77.50,entrustProtectKeyTransfer
1.2.840.113533.7.77.57,entrustAllowTokenSpilloverFile
1.2.840.113533.7.77.58,entrustMaximumTokenKeyHistory
1.2.840.113533.7.77.59,entrustSelfRevokePolicy
1.2.840.113533.7.77.60,entrustAllowPSSwitch
1.2.840.113533.7.77.61,entrustManagementClient
1.2.840.113533.7.77.62,entrustForceOriginalCDPolicyCompliance
1.2.840.113533.7.77.63,entrustAllExportable
1.2.840.113533.7.77.64,entrustProtocolSymmetricEncAlgs
1.2.840.113533.7.77.65,entrustProtocolSigningAlgs
1.2.840.113533.7.67.0,entrustUser
1.2.840.113533.7.67.1,entrustCA
1.2.840.113533.7.68.10,attributeCertificate
1.2.840.113533.7.65.0,entrustVersInfo
1.2.840.113533.7.65.1,clearance
1.2.840.113533.7.65.2,noCRL
1.2.840.113533.7.66.0,cast40CBC
1.2.840.113533.7.66.1,cast64CBC
1.2.840.113533.7.66.2,cast64MAC
1.3.6.1.5.5.1.1,SPKM1
1.3.6.1.5.5.1.2,SPKM2
2.16.840.1.113730,netscape
2.16.840.1.113730.1,netscapeCertExtension
2.16.840.1.113730.1.1,netscapeCertType
2.16.840.1.113730.1.2,netscapeBaseUrl
2.16.840.1.113730.1.3,netscapeRevocationUrl
2.16.840.1.113730.1.4,netscapeCaRevocationUrl
2.16.840.1.113730.1.7,netscapeCertRenewalUrl
2.16.840.1.113730.1.8,netscapeCaPolicyUrl
2.16.840.1.113730.1.12,netscapeSslServerName
2.16.840.1.113730.1.13,netscapeComment
1.2.3.4.9999,timeStamp
2.23.42.7.0,hashedRootKey
2.23.42.7.1,setCertificateType
2.16.840.1.114027.10.4,entrustAdminServicesClients
2.16.840.1.114027.10.5,entrustAdminServicesServer
1.3.133.16.840.63.0.2,dhSinglePass-stdDH-sha1kdf-scheme
1.3.132.1.11.0,dhSinglePass-stdDH-sha224kdf-scheme
1.3.132.1.11.1,dhSinglePass-stdDH-sha256kdf-scheme
1.3.132.1.11.2,dhSinglePass-stdDH-sha384kdf-scheme
1.3.132.1.11.3,dhSinglePass-stdDH-sha512kdf-scheme
1.3.133.16.840.63.0.3,dhSinglePass-cofactorDH-sha1kdf-scheme
1.3.132.1.14.0,dhSinglePass-cofactorDH-sha224kdf-scheme
1.3.132.1.14.1,dhSinglePass-cofactorDH-sha256kdf-scheme
1.3.132.1.14.2,dhSinglePass-cofactorDH-sha384kdf-scheme
1.3.132.1.14.3,dhSinglePass-cofactorDH-sha512kdf-scheme
1.3.133.16.840.63.0.16,mqvSinglePass-sha1kdf-scheme
1.3.132.1.15.0,mqvSinglePass-sha224kdf-scheme
1.3.132.1.15.1,mqvSinglePass-sha256kdf-scheme
1.3.132.1.15.2,mqvSinglePass-sha384kdf-scheme
1.3.132.1.15.3,mqvSinglePass-sha512kdf-scheme
0.9.2342.19200300.100.1.1,id_userid
0.9.2342.19200300.100.1.3,id_rfc822Mailbox
0.9.2342.19200300.100.1.25,id_domainComponent
2.16.840.1.101.3.4.1.5,id-aes128-wrap
2.16.840.1.101.3.4.1.8,id-aes128-wrap-pad
2.16.840.1.101.3.4.1.25,id-aes192-wrap
2.16.840.1.101.3.4.1.28,id-aes192-wrap-pad
2.16.840.1.101.3.4.1.45,id-aes256-wrap
2.16.840.1.101.3.4.1.48,id-aes256-wrap-pad
1.2.840.113549.1.9.16.3.6,id-alg-CMS3DESwrap
2.16.840.1.114027.80.2.1,id-PKIXCMP-stdECDHwithX963SHA1
1.2.840.113549.1.1.1,rsaEncryption
1.2.840.113549.1.1.2,md2WithRSAEncryption
1.2.840.113549.1.1.4,md5WithRSAEncryption
1.2.840.113549.1.1.5,sha1WithRSAEncryption
1.2.840.113549.1.1.7,id_RSAES_OAEP
1.2.840.113549.1.1.8,id_mgf1
1.2.840.113549.1.1.9,id_pSpecified
1.2.840.113549.1.1.10,id_RSASSA_PSS
1.2.840.113549.1.9.1,emailAddress
1.2.840.113549.2.2,md2
1.2.840.113549.2.5,md5
1.3.14.3.2.26,id_sha1
1.3.14.3.2.29,sha1WithRSASignature
1.3.14.3.2.27,dsaWithSHA1
1.2.840.10040.4.1,id_dsa
1.2.840.10040.4.3,id_dsa_with_sha1
1.2.840.10046.2.1,dhpublicnumber
1.2.840.113549.3.7,id_des_EDE3_CBC

ASN.1 Decoder by: manaslu_eiger@yahoo.co.jp
Original from: www.geocities.co.jp/SiliconValley-SanJose/3377/asn1JS.js
I've made some changes.

Input can be: 30 03 02 01 ff (HEX string) 30030201ff (HEX string, without space) 30 03 02 01 FF (HEX string, upper case) 30030201FF (HEX string, without space, upper case) MAMCAf8= (BASE64/PEM)

Carriage-returns, line-feeds, and tab will be ignored as white space.

Each HEX token must be two digits. I.E. use 03 instead of 3.