| # |
| # Copyright (C) 2014 The Android Open Source Project |
| # |
| # Licensed under the Apache License, Version 2.0 (the "License"); |
| # you may not use this file except in compliance with the License. |
| # You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| # |
| |
| """Provides selector information for TPM 2.0 unions. |
| |
| Describing this information explicitly is easier than extracting it from the |
| specification. |
| """ |
| |
| _SELECTORS = { |
| 'TPMU_HA': { |
| 'type': ['TPMI_ALG_HASH'], |
| 'selectors': { |
| 'TPM_ALG_SHA1': 'sha1[SHA1_DIGEST_SIZE]', |
| 'TPM_ALG_SHA256': 'sha256[SHA256_DIGEST_SIZE]', |
| 'TPM_ALG_SM3_256': 'sm3_256[SM3_256_DIGEST_SIZE]', |
| 'TPM_ALG_SHA384': 'sha384[SHA384_DIGEST_SIZE]', |
| 'TPM_ALG_SHA512': 'sha512[SHA512_DIGEST_SIZE]', |
| 'TPM_ALG_NULL': '' |
| } |
| }, |
| 'TPMU_CAPABILITIES': { |
| 'type': ['TPM_CAP'], |
| 'selectors': { |
| 'TPM_CAP_ALGS': 'algorithms', |
| 'TPM_CAP_HANDLES': 'handles', |
| 'TPM_CAP_COMMANDS': 'command', |
| 'TPM_CAP_PP_COMMANDS': 'ppCommands', |
| 'TPM_CAP_AUDIT_COMMANDS': 'auditCommands', |
| 'TPM_CAP_PCRS': 'assignedPCR', |
| 'TPM_CAP_TPM_PROPERTIES': 'tpmProperties', |
| 'TPM_CAP_PCR_PROPERTIES': 'pcrProperties', |
| 'TPM_CAP_ECC_CURVES': 'eccCurves', |
| } |
| }, |
| 'TPMU_ATTEST': { |
| 'type': ['TPMI_ST_ATTEST'], |
| 'selectors': { |
| 'TPM_ST_ATTEST_CERTIFY': 'certify', |
| 'TPM_ST_ATTEST_CREATION': 'creation', |
| 'TPM_ST_ATTEST_QUOTE': 'quote', |
| 'TPM_ST_ATTEST_COMMAND_AUDIT': 'commandAudit', |
| 'TPM_ST_ATTEST_SESSION_AUDIT': 'sessionAudit', |
| 'TPM_ST_ATTEST_TIME': 'time', |
| 'TPM_ST_ATTEST_NV': 'nv', |
| } |
| }, |
| 'TPMU_SYM_KEY_BITS': { |
| 'type': ['TPMI_ALG_SYM', 'TPMI_ALG_SYM_OBJECT'], |
| 'selectors': { |
| 'TPM_ALG_AES': 'aes', |
| 'TPM_ALG_SM4': 'SM4', |
| 'TPM_ALG_XOR': 'xor_', |
| 'TPM_ALG_NULL': '', |
| } |
| }, |
| 'TPMU_SYM_MODE': { |
| 'type': ['TPMI_ALG_SYM', 'TPMI_ALG_SYM_OBJECT'], |
| 'selectors': { |
| 'TPM_ALG_AES': 'aes', |
| 'TPM_ALG_SM4': 'SM4', |
| 'TPM_ALG_XOR': '', |
| 'TPM_ALG_NULL': '', |
| } |
| }, |
| 'TPMU_SYM_DETAILS': { |
| 'type': ['TPMI_ALG_SYM', 'TPMI_ALG_SYM_OBJECT'], |
| 'selectors': {} |
| }, |
| 'TPMU_SCHEME_KEYEDHASH': { |
| 'type': ['TPMI_ALG_KEYEDHASH_SCHEME'], |
| 'selectors': { |
| 'TPM_ALG_HMAC': 'hmac', |
| 'TPM_ALG_XOR': 'xor_', |
| 'TPM_ALG_NULL': '', |
| } |
| }, |
| 'TPMU_SIG_SCHEME': { |
| 'type': ['TPMI_ALG_SIG_SCHEME', 'TPMI_ALG_ECC_SCHEME'], |
| 'selectors': { |
| 'TPM_ALG_RSASSA': 'rsassa', |
| 'TPM_ALG_RSAPSS': 'rsapss', |
| 'TPM_ALG_ECDSA': 'ecdsa', |
| 'TPM_ALG_SM2': 'sm2', |
| 'TPM_ALG_ECDAA': 'ecdaa', |
| 'TPM_ALG_ECSCHNORR': 'ecSchnorr', |
| 'TPM_ALG_HMAC': 'hmac', |
| 'TPM_ALG_NULL': '', |
| } |
| }, |
| 'TPMU_KDF_SCHEME': { |
| 'type': ['TPMI_ALG_KDF'], |
| 'selectors': { |
| 'TPM_ALG_MGF1': 'mgf1', |
| 'TPM_ALG_KDF1_SP800_56a': 'kdf1_SP800_56a', |
| 'TPM_ALG_KDF2': 'kdf2', |
| 'TPM_ALG_KDF1_SP800_108': 'kdf1_sp800_108', |
| 'TPM_ALG_NULL': '', |
| } |
| }, |
| 'TPMU_ASYM_SCHEME': { |
| 'type': ['TPMI_ALG_ASYM_SCHEME', |
| 'TPMI_ALG_RSA_SCHEME', |
| 'TPMI_ALG_RSA_DECRYPT', |
| 'TPMI_ALG_ECC_SCHEME'], |
| 'selectors': { |
| 'TPM_ALG_RSASSA': 'rsassa', |
| 'TPM_ALG_RSAPSS': 'rsapss', |
| 'TPM_ALG_RSAES': '', |
| 'TPM_ALG_OAEP': 'oaep', |
| 'TPM_ALG_ECDSA': 'ecdsa', |
| 'TPM_ALG_SM2': 'sm2', |
| 'TPM_ALG_ECDAA': 'ecdaa', |
| 'TPM_ALG_ECSCHNORR': 'ecSchnorr', |
| 'TPM_ALG_ECDH': 'ecdh', |
| 'TPM_ALG_NULL': '', |
| } |
| }, |
| 'TPMU_SIGNATURE': { |
| 'type': ['TPMI_ALG_SIG_SCHEME'], |
| 'selectors': { |
| 'TPM_ALG_RSASSA': 'rsassa', |
| 'TPM_ALG_RSAPSS': 'rsapss', |
| 'TPM_ALG_ECDSA': 'ecdsa', |
| 'TPM_ALG_SM2': 'sm2', |
| 'TPM_ALG_ECDAA': 'ecdaa', |
| 'TPM_ALG_ECSCHNORR': 'ecschnorr', |
| 'TPM_ALG_HMAC': 'hmac', |
| 'TPM_ALG_NULL': '', |
| } |
| }, |
| 'TPMU_PUBLIC_PARMS': { |
| 'type': ['TPMI_ALG_PUBLIC'], |
| 'selectors': { |
| 'TPM_ALG_KEYEDHASH': 'keyedHashDetail', |
| 'TPM_ALG_SYMCIPHER': 'symDetail', |
| 'TPM_ALG_RSA': 'rsaDetail', |
| 'TPM_ALG_ECC': 'eccDetail', |
| } |
| }, |
| 'TPMU_PUBLIC_ID': { |
| 'type': ['TPMI_ALG_PUBLIC'], |
| 'selectors': { |
| 'TPM_ALG_KEYEDHASH': 'keyedHash', |
| 'TPM_ALG_SYMCIPHER': 'sym', |
| 'TPM_ALG_RSA': 'rsa', |
| 'TPM_ALG_ECC': 'ecc', |
| } |
| }, |
| 'TPMU_SENSITIVE_COMPOSITE': { |
| 'type': ['TPMI_ALG_PUBLIC'], |
| 'selectors': { |
| 'TPM_ALG_KEYEDHASH': 'bits', |
| 'TPM_ALG_SYMCIPHER': 'sym', |
| 'TPM_ALG_RSA': 'rsa', |
| 'TPM_ALG_ECC': 'ecc', |
| } |
| }, |
| } |
| |
| |
| def GetUnionSelectorType(union_type): |
| """Returns the selector type for a given union.""" |
| return _SELECTORS[union_type]['type'][0] |
| |
| |
| def GetUnionSelectorTypes(union_type): |
| """Returns a list of all acceptable selector types for a given union.""" |
| return _SELECTORS[union_type]['type'] |
| |
| |
| def GetUnionSelectorValues(union_type): |
| """Returns the list of possible selector values for a given union.""" |
| return _SELECTORS[union_type]['selectors'].keys() |
| |
| |
| def GetUnionSelectorField(union_type, selector_value): |
| """Returns the union field associated with a given selector value.""" |
| return _SELECTORS[union_type]['selectors'][selector_value] |
