Introduce CTR mode support for the cipher APIs. CTR mode uses a counter rather than a traditional IV. The counter has additional properties, including a nonce and initial counter block. We reuse the ctx->iv as the counter for conveniences. Both libgcrypt and nettle are support CTR mode, the cipher-builtin doesn't support yet. Signed-off-by: Gonglei <arei.gonglei@huawei.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
319 lines
8.5 KiB
Python
319 lines
8.5 KiB
Python
# -*- Mode: Python -*-
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#
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# QAPI crypto definitions
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##
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# QCryptoTLSCredsEndpoint:
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#
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# The type of network endpoint that will be using the credentials.
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# Most types of credential require different setup / structures
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# depending on whether they will be used in a server versus a
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# client.
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#
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# @client: the network endpoint is acting as the client
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#
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# @server: the network endpoint is acting as the server
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#
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# Since: 2.5
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##
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{ 'enum': 'QCryptoTLSCredsEndpoint',
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'prefix': 'QCRYPTO_TLS_CREDS_ENDPOINT',
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'data': ['client', 'server']}
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##
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# QCryptoSecretFormat:
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#
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# The data format that the secret is provided in
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#
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# @raw: raw bytes. When encoded in JSON only valid UTF-8 sequences can be used
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# @base64: arbitrary base64 encoded binary data
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# Since: 2.6
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##
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{ 'enum': 'QCryptoSecretFormat',
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'prefix': 'QCRYPTO_SECRET_FORMAT',
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'data': ['raw', 'base64']}
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##
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# QCryptoHashAlgorithm:
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#
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# The supported algorithms for computing content digests
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#
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# @md5: MD5. Should not be used in any new code, legacy compat only
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# @sha1: SHA-1. Should not be used in any new code, legacy compat only
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# @sha224: SHA-224. (since 2.7)
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# @sha256: SHA-256. Current recommended strong hash.
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# @sha384: SHA-384. (since 2.7)
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# @sha512: SHA-512. (since 2.7)
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# @ripemd160: RIPEMD-160. (since 2.7)
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# Since: 2.6
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##
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{ 'enum': 'QCryptoHashAlgorithm',
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'prefix': 'QCRYPTO_HASH_ALG',
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'data': ['md5', 'sha1', 'sha224', 'sha256', 'sha384', 'sha512', 'ripemd160']}
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##
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# QCryptoCipherAlgorithm:
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#
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# The supported algorithms for content encryption ciphers
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#
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# @aes-128: AES with 128 bit / 16 byte keys
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# @aes-192: AES with 192 bit / 24 byte keys
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# @aes-256: AES with 256 bit / 32 byte keys
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# @des-rfb: RFB specific variant of single DES. Do not use except in VNC.
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# @cast5-128: Cast5 with 128 bit / 16 byte keys
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# @serpent-128: Serpent with 128 bit / 16 byte keys
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# @serpent-192: Serpent with 192 bit / 24 byte keys
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# @serpent-256: Serpent with 256 bit / 32 byte keys
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# @twofish-128: Twofish with 128 bit / 16 byte keys
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# @twofish-192: Twofish with 192 bit / 24 byte keys
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# @twofish-256: Twofish with 256 bit / 32 byte keys
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# Since: 2.6
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##
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{ 'enum': 'QCryptoCipherAlgorithm',
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'prefix': 'QCRYPTO_CIPHER_ALG',
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'data': ['aes-128', 'aes-192', 'aes-256',
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'des-rfb',
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'cast5-128',
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'serpent-128', 'serpent-192', 'serpent-256',
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'twofish-128', 'twofish-192', 'twofish-256']}
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##
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# QCryptoCipherMode:
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#
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# The supported modes for content encryption ciphers
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#
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# @ecb: Electronic Code Book
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# @cbc: Cipher Block Chaining
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# @xts: XEX with tweaked code book and ciphertext stealing
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# @ctr: Counter (Since 2.8)
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# Since: 2.6
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##
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{ 'enum': 'QCryptoCipherMode',
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'prefix': 'QCRYPTO_CIPHER_MODE',
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'data': ['ecb', 'cbc', 'xts', 'ctr']}
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##
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# QCryptoIVGenAlgorithm:
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#
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# The supported algorithms for generating initialization
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# vectors for full disk encryption. The 'plain' generator
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# should not be used for disks with sector numbers larger
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# than 2^32, except where compatibility with pre-existing
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# Linux dm-crypt volumes is required.
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#
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# @plain: 64-bit sector number truncated to 32-bits
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# @plain64: 64-bit sector number
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# @essiv: 64-bit sector number encrypted with a hash of the encryption key
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# Since: 2.6
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##
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{ 'enum': 'QCryptoIVGenAlgorithm',
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'prefix': 'QCRYPTO_IVGEN_ALG',
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'data': ['plain', 'plain64', 'essiv']}
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##
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# QCryptoBlockFormat:
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#
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# The supported full disk encryption formats
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#
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# @qcow: QCow/QCow2 built-in AES-CBC encryption. Use only
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# for liberating data from old images.
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# @luks: LUKS encryption format. Recommended for new images
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#
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# Since: 2.6
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##
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{ 'enum': 'QCryptoBlockFormat',
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# 'prefix': 'QCRYPTO_BLOCK_FORMAT',
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'data': ['qcow', 'luks']}
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##
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# QCryptoBlockOptionsBase:
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#
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# The common options that apply to all full disk
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# encryption formats
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#
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# @format: the encryption format
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#
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# Since: 2.6
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##
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{ 'struct': 'QCryptoBlockOptionsBase',
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'data': { 'format': 'QCryptoBlockFormat' }}
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##
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# QCryptoBlockOptionsQCow:
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#
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# The options that apply to QCow/QCow2 AES-CBC encryption format
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#
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# @key-secret: #optional the ID of a QCryptoSecret object providing the
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# decryption key. Mandatory except when probing image for
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# metadata only.
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#
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# Since: 2.6
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##
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{ 'struct': 'QCryptoBlockOptionsQCow',
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'data': { '*key-secret': 'str' }}
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##
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# QCryptoBlockOptionsLUKS:
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#
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# The options that apply to LUKS encryption format
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#
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# @key-secret: #optional the ID of a QCryptoSecret object providing the
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# decryption key. Mandatory except when probing image for
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# metadata only.
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# Since: 2.6
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##
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{ 'struct': 'QCryptoBlockOptionsLUKS',
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'data': { '*key-secret': 'str' }}
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##
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# QCryptoBlockCreateOptionsLUKS:
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#
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# The options that apply to LUKS encryption format initialization
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#
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# @cipher-alg: #optional the cipher algorithm for data encryption
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# Currently defaults to 'aes'.
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# @cipher-mode: #optional the cipher mode for data encryption
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# Currently defaults to 'cbc'
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# @ivgen-alg: #optional the initialization vector generator
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# Currently defaults to 'essiv'
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# @ivgen-hash-alg: #optional the initialization vector generator hash
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# Currently defaults to 'sha256'
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# @hash-alg: #optional the master key hash algorithm
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# Currently defaults to 'sha256'
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# @iter-time: #optional number of milliseconds to spend in
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# PBKDF passphrase processing. Currently defaults
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# to 2000. (since 2.8)
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# Since: 2.6
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##
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{ 'struct': 'QCryptoBlockCreateOptionsLUKS',
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'base': 'QCryptoBlockOptionsLUKS',
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'data': { '*cipher-alg': 'QCryptoCipherAlgorithm',
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'*cipher-mode': 'QCryptoCipherMode',
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'*ivgen-alg': 'QCryptoIVGenAlgorithm',
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'*ivgen-hash-alg': 'QCryptoHashAlgorithm',
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'*hash-alg': 'QCryptoHashAlgorithm',
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'*iter-time': 'int'}}
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##
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# QCryptoBlockOpenOptions:
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#
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# The options that are available for all encryption formats
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# when opening an existing volume
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#
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# Since: 2.6
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##
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{ 'union': 'QCryptoBlockOpenOptions',
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'base': 'QCryptoBlockOptionsBase',
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'discriminator': 'format',
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'data': { 'qcow': 'QCryptoBlockOptionsQCow',
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'luks': 'QCryptoBlockOptionsLUKS' } }
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##
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# QCryptoBlockCreateOptions:
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#
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# The options that are available for all encryption formats
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# when initializing a new volume
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#
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# Since: 2.6
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##
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{ 'union': 'QCryptoBlockCreateOptions',
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'base': 'QCryptoBlockOptionsBase',
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'discriminator': 'format',
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'data': { 'qcow': 'QCryptoBlockOptionsQCow',
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'luks': 'QCryptoBlockCreateOptionsLUKS' } }
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##
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# QCryptoBlockInfoBase:
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#
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# The common information that applies to all full disk
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# encryption formats
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#
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# @format: the encryption format
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#
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# Since: 2.7
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##
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{ 'struct': 'QCryptoBlockInfoBase',
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'data': { 'format': 'QCryptoBlockFormat' }}
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##
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# QCryptoBlockInfoLUKSSlot:
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#
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# Information about the LUKS block encryption key
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# slot options
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#
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# @active: whether the key slot is currently in use
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# @key-offset: offset to the key material in bytes
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# @iters: #optional number of PBKDF2 iterations for key material
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# @stripes: #optional number of stripes for splitting key material
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#
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# Since: 2.7
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##
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{ 'struct': 'QCryptoBlockInfoLUKSSlot',
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'data': {'active': 'bool',
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'*iters': 'int',
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'*stripes': 'int',
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'key-offset': 'int' } }
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##
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# QCryptoBlockInfoLUKS:
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#
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# Information about the LUKS block encryption options
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#
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# @cipher-alg: the cipher algorithm for data encryption
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# @cipher-mode: the cipher mode for data encryption
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# @ivgen-alg: the initialization vector generator
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# @ivgen-hash-alg: #optional the initialization vector generator hash
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# @hash-alg: the master key hash algorithm
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# @payload-offset: offset to the payload data in bytes
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# @master-key-iters: number of PBKDF2 iterations for key material
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# @uuid: unique identifier for the volume
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# @slots: information about each key slot
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#
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# Since: 2.7
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##
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{ 'struct': 'QCryptoBlockInfoLUKS',
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'data': {'cipher-alg': 'QCryptoCipherAlgorithm',
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'cipher-mode': 'QCryptoCipherMode',
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'ivgen-alg': 'QCryptoIVGenAlgorithm',
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'*ivgen-hash-alg': 'QCryptoHashAlgorithm',
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'hash-alg': 'QCryptoHashAlgorithm',
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'payload-offset': 'int',
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'master-key-iters': 'int',
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'uuid': 'str',
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'slots': [ 'QCryptoBlockInfoLUKSSlot' ] }}
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##
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# QCryptoBlockInfoQCow:
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#
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# Information about the QCow block encryption options
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#
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# Since: 2.7
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##
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{ 'struct': 'QCryptoBlockInfoQCow',
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'data': { }}
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##
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# QCryptoBlockInfo:
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#
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# Information about the block encryption options
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#
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# Since: 2.7
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##
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{ 'union': 'QCryptoBlockInfo',
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'base': 'QCryptoBlockInfoBase',
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'discriminator': 'format',
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'data': { 'qcow': 'QCryptoBlockInfoQCow',
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'luks': 'QCryptoBlockInfoLUKS' } }
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