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Update README
Update the README to reflect the changes to "evmctl --help". Update the "--pass" option format in both the README and evmctl usage to reflect passing an optional password on the command line (not recommended). When providing the password, the format is: "[--pass[=<password>]]". Also fix some typos. Still include references to both the deprecated "--rsa" and "--engine" options. Related confiigure options: --enable-sigv1 Build ima-evm-utils with signature v1 support --disable-engine build ima-evm-utils without OpenSSL engine support Reported-by: Vitaly Chikunov <vt@altlinux.org> # typos, "--pass" format Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
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Mimi Zohar
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README
37
README
@ -25,29 +25,34 @@ COMMANDS
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--version
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help <command>
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import [--rsa] pubkey keyring
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sign [-r] [--imahash | --imasig ] [--portable] [--key key] [--pass password] file
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import [--rsa (deprecated)] pubkey keyring
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sign [-r] [--imahash | --imasig ] [--key key] [--pass[=<password>] file
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verify file
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ima_boot_aggregate [--pcrs hash-algorithm,file] [TPM 1.2 BIOS event log]
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ima_sign [--sigfile] [--key key] [--pass password] file
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ima_sign [--sigfile] [--key key] [--pass[=<password>]] file
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ima_verify file
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ima_setxattr [--sigfile file]
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ima_hash file
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ima_measurement [--ignore-violations] [--verify-sig [--key "key1, key2, ..."]] [--pcrs [hash-algorithm,]file [--pcrs hash-algorithm,file] ...] file
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ima_measurement [--ignore-violations] [--verify-sig [--key "key1, key2, ..."]]
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[--pcrs [hash-algorithm,]file [--pcrs hash-algorithm,file] ...]
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[--verify-bank hash-algorithm] file
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ima_boot_aggregate [--pcrs hash-algorithm,file] [TPM 1.2 BIOS event log]
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[--hwtpm]
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ima_fix [-t fdsxm] path
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sign_hash [--veritysig] [--key key] [--pass password]
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ima_clear [-t fdsxm] path
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sign_hash [--veritysig] [--key key] [--pass=<password>]
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hmac [--imahash | --imasig ] file
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OPTIONS
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-------
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-a, --hashalgo sha1, sha224, sha256, sha384, sha512
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-a, --hashalgo sha1, sha224, sha256, sha384, sha512, streebog256, streebog512 (default: sha256)
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-s, --imasig make IMA signature
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--veritysig sign an fs-verity file digest hash
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-d, --imahash make IMA hash
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-f, --sigfile store IMA signature in .sig file instead of xattr
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--xattr-user store xattrs in user namespace (for testing purposes)
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--rsa use RSA key type and signing scheme v1
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--rsa use RSA key type and signing scheme v1 (deprecated)
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-k, --key path to signing key (default: /etc/keys/{privkey,pubkey}_evm.pem)
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or a pkcs11 URI
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--keyid n overwrite signature keyid with a 32-bit value in hex (for signing)
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@ -64,7 +69,15 @@ OPTIONS
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--smack use extra SMACK xattrs for EVM
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--m32 force EVM hmac/signature for 32 bit target system
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--m64 force EVM hmac/signature for 64 bit target system
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--engine e preload OpenSSL engine e (such as: gost)
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--engine e preload OpenSSL engine e (such as: gost) is deprecated
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--ino use custom inode for EVM
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--uid use custom UID for EVM
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--gid use custom GID for EVM
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--mode use custom Mode for EVM
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--generation use custom Generation for EVM(unspecified: from FS, empty: use 0)
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--ima use custom IMA signature for EVM
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--selinux use custom Selinux label for EVM
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--caps use custom Capabilities for EVM(unspecified: from FS, empty: do not use)
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--pcrs file containing TPM pcrs, one per hash-algorithm/bank
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--ignore-violations ignore ToMToU measurement violations
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--verify-sig verify the file signature based on the file hash, both
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@ -206,7 +219,7 @@ asymmetric keys support:
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Configuration file x509_evm.genkey:
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# Begining of the file
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# Beginning of the file
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[ req ]
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default_bits = 1024
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distinguished_name = req_distinguished_name
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@ -257,7 +270,7 @@ following steps:
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Configuration file ima-local-ca.genkey:
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# Begining of the file
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# Beginning of the file
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[ req ]
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default_bits = 2048
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distinguished_name = req_distinguished_name
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@ -288,7 +301,7 @@ Produce X509 in DER format for using while building the kernel:
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Configuration file ima.genkey:
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# Begining of the file
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# Beginning of the file
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[ req ]
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default_bits = 1024
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distinguished_name = req_distinguished_name
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@ -2820,6 +2820,7 @@ static void usage(void)
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"\n"
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" -a, --hashalgo sha1, sha224, sha256, sha384, sha512, streebog256, streebog512 (default: %s)\n"
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" -s, --imasig make IMA signature\n"
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" --veritysig sign an fs-verity file digest hash\n"
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" -d, --imahash make IMA hash\n"
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" -f, --sigfile store IMA signature in .sig file instead of xattr\n"
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" --xattr-user store xattrs in user namespace (for testing purposes)\n"
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@ -2867,14 +2868,14 @@ struct command cmds[] = {
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{"--version", NULL, 0, ""},
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{"help", cmd_help, 0, "<command>"},
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#if CONFIG_SIGV1
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{"import", cmd_import, 0, "[--rsa] pubkey keyring", "Import public key into the keyring. ([--rsa] deprecated)\n"},
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{"import", cmd_import, 0, "[--rsa (deprecated)] pubkey keyring", "Import public key into the keyring.\n"},
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{"convert", cmd_convert, 0, "key", "convert public key into the keyring. (deprecated)\n"},
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#else
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{"import", cmd_import, 0, "pubkey keyring", "Import public key into the keyring.\n"},
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#endif
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{"sign", cmd_sign_evm, 0, "[-r] [--imahash | --imasig ] [--key key] [--pass [password] file", "Sign file metadata.\n"},
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{"sign", cmd_sign_evm, 0, "[-r] [--imahash | --imasig ] [--key key] [--pass[=<password>]] file", "Sign file metadata.\n"},
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{"verify", cmd_verify_evm, 0, "file", "Verify EVM signature (for debugging).\n"},
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{"ima_sign", cmd_sign_ima, 0, "[--sigfile] [--key key] [--pass [password] file", "Make file content signature.\n"},
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{"ima_sign", cmd_sign_ima, 0, "[--sigfile] [--key key] [--pass[=<password>]] file", "Make file content signature.\n"},
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{"ima_verify", cmd_verify_ima, 0, "file", "Verify IMA signature (for debugging).\n"},
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{"ima_setxattr", cmd_setxattr_ima, 0, "[--sigfile file]", "Set IMA signature from sigfile\n"},
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{"ima_hash", cmd_hash_ima, 0, "file", "Make file content hash.\n"},
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@ -2882,7 +2883,7 @@ struct command cmds[] = {
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{"ima_boot_aggregate", cmd_ima_bootaggr, 0, "[--pcrs hash-algorithm,file] [TPM 1.2 BIOS event log] [--hwtpm]", "Calculate per TPM bank boot_aggregate digests\n"},
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{"ima_fix", cmd_ima_fix, 0, "[-t fdsxm] path", "Recursively fix IMA/EVM xattrs in fix mode.\n"},
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{"ima_clear", cmd_ima_clear, 0, "[-t fdsxm] path", "Recursively remove IMA/EVM xattrs.\n"},
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{"sign_hash", cmd_sign_hash, 0, "[--veritysig] [--key key] [--pass password]", "Sign hashes from either shaXsum or \"fsverity digest\" output.\n"},
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{"sign_hash", cmd_sign_hash, 0, "[--veritysig] [--key key] [--pass[=<password>]]", "Sign hashes from either shaXsum or \"fsverity digest\" output.\n"},
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#ifdef DEBUG
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{"hmac", cmd_hmac_evm, 0, "[--imahash | --imasig ] file", "Sign file metadata with HMAC using symmetric key (for testing purpose).\n"},
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#endif
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