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Index

• Constants

Constants

const (
	// RSASSA-PKCS1-v1_5 using SHA-1
	AlgorithmRS1 = -65535
	// WalnutDSA signature
	AlgorithmWalnutDSA = -260
	// RSASSA-PKCS1-v1_5 using SHA-512
	AlgorithmRS512 = -259
	// RSASSA-PKCS1-v1_5 using SHA-384
	AlgorithmRS384 = -258
	// RSASSA-PKCS1-v1_5 using SHA-256
	AlgorithmRS256 = -257
	// ECDSA using secp256k1 curve and SHA-256
	AlgorithmES256K = -47
	// HSS/LMS hash-based digital signature
	AlgorithmHSS_LMS = -46
	// SHAKE-256 512-bit Hash Value
	AlgorithmSHAKE256 = -45
	// SHA-2 512-bit Hash
	AlgorithmSHA_512 = -44
	// SHA-2 384-bit Hash
	AlgorithmSHA_384 = -43
	// RSAES-OAEP w/ SHA-512
	AlgorithmRSAES_OAEP_SHA_512 = -42
	// RSAES-OAEP w/ SHA-256
	AlgorithmRSAES_OAEP_SHA_256 = -41
	// RSAES-OAEP w/ SHA-1
	AlgorithmRSAES_OAEP_RFC_8017_default = -40
	// RSASSA-PSS w/ SHA-512
	AlgorithmPS512 = -39
	// RSASSA-PSS_SHA-384
	AlgorithmPS384 = -38
	// RSASSA-PSS w/ SHA-256
	AlgorithmPS256 = -37
	// ECDSA w/ SHA-512
	AlgorithmES512 = -36
	// ECDSA w/ SHA-384
	AlgorithmES384 = -35
	// ECDH SS w/ Concat KDF and AES Key Wrap w/ 256-bit key
	AlgorithmECDH_SS_A256KW = -34
	// ECDH SS w/ Concat KDF and AES Key Wrap w/ 192-bit key
	AlgorithmECDH_SS_A192KW = -33
	// ECDH SS w/ Concat KDF and AES Key Wrap w/ 128-bit key
	AlgorithmECDH_SS_A128KW = -32
	// ECDH ES w/ Concat KDF and AES Key Wrap w/ 256-bit key
	AlgorithmECDH_ES_A256KW = -31
	// ECDH ES w/ Concat KDF and AES Key Wrap w/ 192-bit key
	AlgorithmECDH_ES_A192KW = -30
	// ECDH ES w/ Concat KDF and AES Key Wrap w/ 128-bit key
	AlgorithmECDH_ES_A128KW = -29
	// ECDH SS w/ HKDF - generate key directly
	AlgorithmECDH_SS_HKDF_512 = -28
	// ECDH SS w/ HKDF - generate key directly
	AlgorithmECDH_SS_HKDF_256 = -27
	// ECDH ES w/ HKDF - generate key directly
	AlgorithmECDH_ES_HKDF_512 = -26
	// ECDH ES w/ HKDF - generate key directly
	AlgorithmECDH_ES_HKDF_256 = -25
	// SHAKE-128 256-bit Hash Value
	AlgorithmSHAKE128 = -18
	// SHA-2 512-bit Hash truncated to 256-bits
	AlgorithmSHA_512_256 = -17
	// SHA-2 256-bit Hash
	AlgorithmSHA_256 = -16
	// SHA-2 256-bit Hash truncated to 64-bits
	AlgorithmSHA_256_64 = -15
	// SHA-1 Hash
	AlgorithmSHA_1 = -14
	// Shared secret w/ AES-MAC 256-bit key
	AlgorithmDirect_HKDF_AES_256 = -13
	// Shared secret w/ AES-MAC 128-bit key
	AlgorithmDirect_HKDF_AES_128 = -12
	// Shared secret w/ HKDF and SHA-512
	AlgorithmDirect_HKDF_SHA_512 = -11
	// Shared secret w/ HKDF and SHA-256
	AlgorithmDirect_HKDF_SHA_256 = -10
	// EdDSA
	AlgorithmEdDSA = -8
	// ECDSA w/ SHA-256
	AlgorithmES256 = -7
	// Direct use of CEK
	AlgorithmDirect = -6
	// AES Key Wrap w/ 256-bit key
	AlgorithmA256KW = -5
	// AES Key Wrap w/ 192-bit key
	AlgorithmA192KW = -4
	// AES Key Wrap w/ 128-bit key
	AlgorithmA128KW = -3
	// Reserved
	AlgorithmReserved = 0
	// AES-GCM mode w/ 128-bit key, 128-bit tag
	AlgorithmA128GCM = 1
	// AES-GCM mode w/ 192-bit key, 128-bit tag
	AlgorithmA192GCM = 2
	// AES-GCM mode w/ 256-bit key, 128-bit tag
	AlgorithmA256GCM = 3
	// HMAC w/ SHA-256 truncated to 64 bits
	AlgorithmHMAC_256_64 = 4
	// HMAC w/ SHA-256
	AlgorithmHMAC_256_256 = 5
	// HMAC w/ SHA-384
	AlgorithmHMAC_384_384 = 6
	// HMAC w/ SHA-512
	AlgorithmHMAC_512_512 = 7
	// AES-CCM mode 128-bit key, 64-bit tag, 13-byte nonce
	AlgorithmAES_CCM_16_64_128 = 10
	// AES-CCM mode 256-bit key, 64-bit tag, 13-byte nonce
	AlgorithmAES_CCM_16_64_256 = 11
	// AES-CCM mode 128-bit key, 64-bit tag, 7-byte nonce
	AlgorithmAES_CCM_64_64_128 = 12
	// AES-CCM mode 256-bit key, 64-bit tag, 7-byte nonce
	AlgorithmAES_CCM_64_64_256 = 13
	// AES-MAC 128-bit key, 64-bit tag
	AlgorithmAES_MAC_128_64 = 14
	// AES-MAC 256-bit key, 64-bit tag
	AlgorithmAES_MAC_256_64 = 15
	// ChaCha20/Poly1305 w/ 256-bit key, 128-bit tag
	AlgorithmChaCha20Poly1305 = 24
	// AES-MAC 128-bit key, 128-bit tag
	AlgorithmAES_MAC_128_128 = 25
	// AES-MAC 256-bit key, 128-bit tag
	AlgorithmAES_MAC_256_128 = 26
	// AES-CCM mode 128-bit key, 128-bit tag, 13-byte nonce
	AlgorithmAES_CCM_16_128_128 = 30
	// AES-CCM mode 256-bit key, 128-bit tag, 13-byte nonce
	AlgorithmAES_CCM_16_128_256 = 31
	// AES-CCM mode 128-bit key, 128-bit tag, 7-byte nonce
	AlgorithmAES_CCM_64_128_128 = 32
	// AES-CCM mode 256-bit key, 128-bit tag, 7-byte nonce
	AlgorithmAES_CCM_64_128_256 = 33
	// For doing IV generation for symmetric algorithms.
	AlgorithmIV_GENERATION = 34
)

IANA-registered COSE algorithms.

From IANA registry https://www.iana.org/assignments/cose/cose.xhtml#algorithms as of 2022-12-19.

const (
	// Health certificate ("hcert": map).
	CWTClaimHCert = -260
	// Challenge nonce ("EUPHNonce": bstr).
	CWTClaimEUPHNonce = -259
	// Signing prefix for multi-app restricted operating environment ("EATMAROEPrefix": bstr).
	CWTClaimEATMAROEPrefix = -258
	// FIDO Device Onboarding EAT ("EAT-FDO": array).
	CWTClaimEATFDO = -257

	// Reserved value.
	CWTClaimReserved = 0

	// Issuer ("iss": tstr).
	CWTClaimIss = 1
	// Subject ("sub": tstr)
	CWTClaimSub = 2
	// Audience ("aud": tstr)
	CWTClaimAud = 3
	// Expiration Time, as seconds since UNIX epoch ("exp": int/float)
	CWTClaimExp = 4
	// Not Before, as seconds since UNIX epoch ("nbf": int/float)
	CWTClaimNbf = 5
	// Issued at, as seconds since UNIX epoch ("iat": int/float)
	CWTClaimIat = 6
	// CWT ID ("cti": bstr)
	CWTClaimCti = 7
	// Confirmation ("cnf": map)
	CWTClaimCnf = 8
	// Scope of an access token ("scope": bstr/tstr)
	CWTClaimScope = 9
	// Nonce ("nonce": bstr) TEMPORARY, expires 2023-03-23
	CWTClaimNonce = 10

	// The ACE profile a token is supposed to be used with ("ace_profile": int)
	CWTClaimACEProfile = 38
	// The client-nonce sent to the AS by the RS via the client ("cnonce": bstr)
	CWTClaimCNonce = 39
	// The expiration time of a token measured from when it was received at the RS in seconds ("exi": int)
	CWTClaimExi = 40

	// The Universal Entity ID ("ueid": bstr) TEMPORARY, expires 2023-03-23
	CWTClaimUEID = 256
	// Hardware OEM ID ("sueids": map) TEMPORARY, expires 2023-03-23
	CWTClaimSUEIDs = 257
	// Hardware OEM ID ("oemid": bstr/int) TEMPORARY, expires 2023-03-23
	CWTClaimOEMID = 258
	// Model identifier for hardware ("hwmodel": bstr) TEMPORARY, expires 2023-03-23
	CWTClaimHWModel = 259
	// Hardware Version Identifier ("hwversion": array) TEMPORARY, expires 2023-03-23
	CWTClaimHWVersion = 260
	// Indicate whether the boot was secure ("secboot": bool) TEMPORARY, expires 2023-03-23
	CWTClaimSecureBoot = 262
	// Indicate status of debug facilities ("dbgstat": int) TEMPORARY, expires 2023-03-23
	CWTClaimDebugStatus = 263
	// The geographic location ("location": map) TEMPORARY, expires 2023-03-23
	CWTClaimLocation = 264
	// Indicates the EAT profile followed ("eat_profile": uri/oid) TEMPORARY, expires 2023-03-23
	CWTClaimProfile = 265
	// The section containing submodules ("submods": map) TEMPORARY, expires 2023-03-23
	CWTClaimSubmodules = 266

	// Reference <https://datatracker.ietf.org/doc/draft-tschofenig-rats-psa-token/09/>
	// PSA Client ID (N/A: signed integer)
	CWTClaimPSAClientID = 2394
	// PSA Security Lifecycle (N/A: unsigned integer)
	CWTClaimPSASecurityLifecycle = 2395
	// PSA Implementation ID (N/A: bstr)
	CWTClaimPSAImplementationID = 2396
	// PSA Boot Seed (N/A: bstr)
	CWTClaimPSABootSeed = 2397
	// PSA Certification Reference (N/A: tstr)
	CWTClaimPSACertificationReference = 2398
	// PSA Software Components (N/A: array)
	CWTClaimPSASoftwareComponents = 2399
	// PSA Verification Service Indicator (N/A: tstr)
	CWTClaimPSAVerificationServiceIndicator = 2400
)

CBOR Web Token (CWT) Claims From IANA registry https://www.iana.org/assignments/cwt/cwt.xhtml as of 2022-12-19.

const (
	EllipticCurveReserved = 0
	// EC2: NIST P-256 also known as secp256r1
	EllipticCurveP_256 = 1
	// EC2: NIST P-384 also known as secp384r1
	EllipticCurveP_384 = 2
	// EC2: NIST P-521 also known as secp521r1
	EllipticCurveP_521 = 3
	// OKP: X25519 for use w/ ECDH only
	EllipticCurveX25519 = 4
	// OKP: X448 for use w/ ECDH only
	EllipticCurveX448 = 5
	// OKP: Ed25519 for use w/ EdDSA only
	EllipticCurveEd25519 = 6
	// OKP: Ed448 for use w/ EdDSA only
	EllipticCurveEd448 = 7
	// EC2: SECG secp256k1 curve
	EllipticCurveSecp256k1 = 8
)

IANA-registered COSE elliptic curves.

From IANA registry https://www.iana.org/assignments/cose/cose.xhtml#elliptic-curves as of 2022-12-19.

const (
	// Reserved
	HeaderParameterReserved = 0
	// Cryptographic algorithm to use
	//
	// Associated value of type int / tstr
	HeaderParameterAlg = 1
	// Critical headers to be understood
	//
	// Associated value of type [+ label]
	HeaderParameterCrit = 2
	// Content type of the payload
	//
	// Associated value of type tstr / uint
	HeaderParameterContentType = 3
	// Key identifier
	//
	// Associated value of type bstr
	HeaderParameterKid = 4
	// Full Initialization Vector
	//
	// Associated value of type bstr
	HeaderParameterIV = 5
	// Partial Initialization Vector
	//
	// Associated value of type bstr
	HeaderParameterPartialIV = 6
	// CBOR-encoded signature structure
	//
	// Associated value of type COSE_Signature / [+ COSE_Signature ]
	HeaderParameterCounterSignature = 7
	// Counter signature with implied signer and headers
	//
	// Associated value of type bstr
	HeaderParameterCounterSignature0 = 9
	// Identifies the context for the key identifier
	//
	// Associated value of type bstr
	HeaderParameterKidContext = 10
	// V2 countersignature attribute
	//
	// Associated value of type COSE_Countersignature / [+ COSE_Countersignature]
	HeaderParameterCountersignatureV2 = 11
	// V2 Abbreviated Countersignature
	//
	// Associated value of type COSE_Countersignature0
	HeaderParameterCountersignature0V2 = 11
	// An unordered bag of X.509 certificates
	//
	// Associated value of type COSE_X509
	HeaderParameterX5Bag = 32
	// An ordered chain of X.509 certificates
	//
	// Associated value of type COSE_X509
	HeaderParameterX5Chain = 33
	// Hash of an X.509 certificate
	//
	// Associated value of type COSE_CertHash
	HeaderParameterX5T = 34
	// URI pointing to an X.509 certificate
	//
	// Associated value of type uri
	HeaderParameterX5U = 35
	// Challenge Nonce
	//
	// Associated value of type bstr
	HeaderParameterCuphNonce = 256
	// Public Key
	//
	// Associated value of type array
	HeaderParameterCuphOwnerPubKey = 257
)

IANA-registered COSE header parameters.

From IANA registry https://www.iana.org/assignments/cose/cose.xhtml#header-parameters as of 2022-12-19.

const (
	// static key X.509 certificate chain
	//
	// Associated value of type COSE_X509
	HeaderAlgorithmParameterX5ChainSender = -29
	// URI for the sender's X.509 certificate
	//
	// Associated value of type uri
	HeaderAlgorithmParameterX5USender = -28
	// Thumbprint for the sender's X.509 certificate
	//
	// Associated value of type COSE_CertHash
	HeaderAlgorithmParameterX5TSender = -27
	// Party V other provided information
	//
	// Associated value of type bstr
	HeaderAlgorithmParameterPartyVOther = -26
	// Party V provided nonce
	//
	// Associated value of type bstr / int
	HeaderAlgorithmParameterPartyVNonce = -25
	// Party V identity information
	//
	// Associated value of type bstr
	HeaderAlgorithmParameterPartyVIdentity = -24
	// Party U other provided information
	//
	// Associated value of type bstr
	HeaderAlgorithmParameterPartyUOther = -23
	// Party U provided nonce
	//
	// Associated value of type bstr / int
	HeaderAlgorithmParameterPartyUNonce = -22
	// Party U identity information
	//
	// Associated value of type bstr
	HeaderAlgorithmParameterPartyUIdentity = -21
	// Random salt
	//
	// Associated value of type bstr
	HeaderAlgorithmParameterSalt = -20
	// Static public key identifier for the sender
	//
	// Associated value of type bstr
	HeaderAlgorithmParameterStaticKeyId = -3
	// Static public key for the sender
	//
	// Associated value of type COSE_Key
	HeaderAlgorithmParameterStaticKey = -2
	// Ephemeral public key for the sender
	//
	// Associated value of type COSE_Key
	HeaderAlgorithmParameterEphemeralKey = -1
)

IANA-registered COSE header algorithm parameters.

From IANA registry https://www.iana.org/assignments/cose/cose.xhtml#header-algorithm-parameters as of 2022-12-19.

const (
	// Reserved value.
	KeyParameterReserved = 0
	// Identification of the key type
	//
	// Associated value of type tstr / int
	KeyParameterKty = 1
	// Key identification value - match to kid in message
	//
	// Associated value of type bstr
	KeyParameterKid = 2
	// Key usage restriction to this algorithm
	//
	// Associated value of type tstr / int
	KeyParameterAlg = 3
	// Restrict set of permissible operations
	//
	// Associated value of type [+ (tstr / int)]
	KeyParameterKeyOps = 4
	// Base IV to be XORed with Partial IVs
	//
	// Associated value of type bstr
	KeyParameterBaseIV = 5
)

IANA-registered COSE common key parameters.

From IANA registry <https://www.iana.org/assignments/cose/cose.xhtml#key-common-parameters> as of 2022-12-19.

const (
	// This value is reserved
	KeyTypeReserved = 0
	// Octet Key Pair
	KeyTypeOKP = 1
	// Elliptic Curve Keys w/ x- and y-coordinate pair
	KeyTypeEC2 = 2
	// RSA Key
	KeyTypeRSA = 3
	// Symmetric Keys
	KeyTypeSymmetric = 4
	// Public key for HSS/LMS hash-based digital signature
	KeyTypeHSS_LMS = 5
	// WalnutDSA public key
	KeyTypeWalnutDSA = 6
)

IANA-registered COSE key types.

From IANA registry https://www.iana.org/assignments/cose/cose.xhtml#key-type as of 2022-12-19.

const (
	// EC identifier - Taken from the "COSE Elliptic Curves" registry
	//
	// Associated value of type tstr / int
	OKPKeyParameterCrv = -1
	// x-coordinate
	//
	// Associated value of type bstr
	OKPKeyParameterX = -2
	// Private key
	//
	// Associated value of type bstr
	OKPKeyParameterD = -4
)

IANA-registered COSE key parameters for keys of type [KeyType::OKP].

From IANA registry https://www.iana.org/assignments/cose/cose.xhtml#key-type-parameters as of 2022-12-19.

const (
	// EC identifier - Taken from the "COSE Elliptic Curves" registry
	//
	// Associated value of type tstr / int
	EC2KeyParameterCrv = -1
	// Public Key
	//
	// Associated value of type bstr
	EC2KeyParameterX = -2
	// y-coordinate
	//
	// Associated value of type bstr / bool
	EC2KeyParameterY = -3
	// Private key
	//
	// Associated value of type bstr
	EC2KeyParameterD = -4
)

IANA-registered COSE key parameters for keys of type [KeyType::EC2].

From IANA registry https://www.iana.org/assignments/cose/cose.xhtml#key-type-parameters as of 2022-12-19.

const (
	// The RSA modulus n
	//
	// Associated value of type bstr
	RSAKeyParameterN = -1
	// The RSA public exponent e
	//
	// Associated value of type bstr
	RSAKeyParameterE = -2
	// The RSA private exponent d
	//
	// Associated value of type bstr
	RSAKeyParameterD = -3
	// The prime factor p of n
	//
	// Associated value of type bstr
	RSAKeyParameterP = -4
	// The prime factor q of n
	//
	// Associated value of type bstr
	RSAKeyParameterQ = -5
	// dP is d mod (p - 1)
	//
	// Associated value of type bstr
	RSAKeyParameterDP = -6
	// dQ is d mod (q - 1)
	//
	// Associated value of type bstr
	RSAKeyParameterDQ = -7
	// qInv is the CRT coefficient q^(-1) mod p
	//
	// Associated value of type bstr
	RSAKeyParameterQInv = -8
	// Other prime infos, an array
	//
	// Associated value of type array
	RSAKeyParameterOther = -9
	// a prime factor r_i of n, where i >= 3
	//
	// Associated value of type bstr
	RSAKeyParameterRI = -10
	// d_i = d mod (r_i - 1)
	//
	// Associated value of type bstr
	RSAKeyParameterDI = -11
	// The CRT coefficient t_i = (r_1 * r_2 * ... * r_(i-1))^(-1) mod r_i
	//
	// Associated value of type bstr
	RSAKeyParameterTI = -12
)

IANA-registered COSE key parameters for keys of type [KeyType::RSA].

From IANA registry <https://www.iana.org/assignments/cose/cose.xhtml#key-type-parameters> as of 2022-12-19.

const (
	// Group and Matrix (NxN) size
	//
	// Associated value of type uint
	WalnutDSAKeyParameterN = -1
	// Finite field F_q
	//
	// Associated value of type uint
	WalnutDSAKeyParameterQ = -2
	// List of T-values, enties in F_q
	//
	// Associated value of type array of uint
	WalnutDSAKeyParameterTValues = -3
	// NxN Matrix of enties in F_q in column-major form
	//
	// Associated value of type array of array of uint
	WalnutDSAKeyParameterMatrix1 = -4
	// Permutation associated with matrix 1
	//
	// Associated value of type array of uint
	WalnutDSAKeyParameterPermutation1 = -5
	// NxN Matrix of enties in F_q in column-major form
	//
	// Associated value of type array of array of uint
	WalnutDSAKeyParameterMatrix2 = -6
)

IANA-registered COSE key parameters for keys of type [KeyType::WalnutDSA].

From IANA registry https://www.iana.org/assignments/cose/cose.xhtml#key-type-parameters as of 2022-12-19.

const (
	// Key is used to create signatures. Requires private key fields.
	KeyOperationSign = 1
	// Key is used for verification of signatures.
	KeyOperationVerify = 2
	// Key is used for key transport encryption.
	KeyOperationEncrypt = 3
	// Key is used for key transport decryption. Requires private key fields.
	KeyOperationDecrypt = 4
	// Key is used for key wrap encryption.
	KeyOperationWrapKey = 5
	// Key is used for key wrap decryption.  Requires private key fields.
	KeyOperationUnwrapKey = 6
	// Key is used for deriving keys.  Requires private key fields.
	KeyOperationDeriveKey = 7
	// Key is used for deriving bits not to be used as a key.  Requires private key fields.
	KeyOperationDeriveBits = 8
	// Key is used for creating MACs.
	KeyOperationMacCreate = 9
	// Key is used for validating MACs.
	KeyOperationMacVerify = 10
)

Key operation values.

See https://datatracker.ietf.org/doc/html/rfc9052#name-key-operation-values

const (
	// COSE Single Recipient Encrypted Data Object
	CBORTagCOSEEncrypt0 = 16
	// COSE Mac w/o Recipients Object
	CBORTagCOSEMac0 = 17
	// COSE Single Signer Data Object
	CBORTagCOSESign1 = 18
	// CBOR Web Token (CWT)
	CBORTagCWT = 61
	// COSE Encrypted Data Object
	CBORTagCOSEEncrypt = 96
	// COSE MACed Data Object
	CBORTagCOSEMac = 97
	// COSE Signed Data Object
	CBORTagCOSESign = 98
)

CBOR tag values for COSE structures.

From IANA registry https://www.iana.org/assignments/cbor-tags/cbor-tags.xhtml as of 2022-12-19.

const (
	// Public key for HSS/LMS hash-based digital signature
	//
	// Associated value of type bstr
	HSS_LMSKeyParameterPub = -1
)

IANA-registered COSE key parameters for keys of type [KeyType::HSS_LMS].

From IANA registry https://www.iana.org/assignments/cose/cose.xhtml#key-type-parameters as of 2022-12-19.

const (
	// Key Value
	//
	// Associated value of type bstr
	SymmetricKeyParameterK = -1
)

IANA-registered COSE key parameters for keys of type [KeyType::Symmetric].

From IANA registry https://www.iana.org/assignments/cose/cose.xhtml#key-type-parameters as of 2022-12-19.