{"id":29151228,"url":"https://github.com/karpeleslab/tpmlib","last_synced_at":"2025-07-01T00:08:57.325Z","repository":{"id":251872756,"uuid":"838697744","full_name":"KarpelesLab/tpmlib","owner":"KarpelesLab","description":null,"archived":false,"fork":false,"pushed_at":"2025-04-22T23:52:05.000Z","size":37,"stargazers_count":0,"open_issues_count":0,"forks_count":0,"subscribers_count":1,"default_branch":"master","last_synced_at":"2025-04-23T00:30:34.281Z","etag":null,"topics":[],"latest_commit_sha":null,"homepage":null,"language":"Go","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"mit","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/KarpelesLab.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null,"zenodo":null}},"created_at":"2024-08-06T07:01:42.000Z","updated_at":"2025-04-22T23:52:08.000Z","dependencies_parsed_at":"2024-11-10T11:22:43.804Z","dependency_job_id":"7b96c5fe-5885-4a77-a384-2fc0f5e6a19f","html_url":"https://github.com/KarpelesLab/tpmlib","commit_stats":null,"previous_names":["karpeleslab/tpmlib"],"tags_count":8,"template":false,"template_full_name":null,"purl":"pkg:github/KarpelesLab/tpmlib","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/KarpelesLab%2Ftpmlib","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/KarpelesLab%2Ftpmlib/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/KarpelesLab%2Ftpmlib/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/KarpelesLab%2Ftpmlib/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/KarpelesLab","download_url":"https://codeload.github.com/KarpelesLab/tpmlib/tar.gz/refs/heads/master","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/KarpelesLab%2Ftpmlib/sbom","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":262870877,"owners_count":23377314,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":[],"created_at":"2025-07-01T00:08:54.998Z","updated_at":"2025-07-01T00:08:57.286Z","avatar_url":"https://github.com/KarpelesLab.png","language":"Go","funding_links":[],"categories":[],"sub_categories":[],"readme":"[![GoDoc](https://godoc.org/github.com/KarpelesLab/tpmlib?status.svg)](https://godoc.org/github.com/KarpelesLab/tpmlib)\n\n# tpmlib\n\nA Go library for interfacing with Trusted Platform Module (TPM) devices. This library enables applications to:\n\n- Connect to a local TPM device\n- Generate and use TPM-backed keys for cryptographic operations\n- Perform signing operations using ECDSA\n- Execute ECDH key exchanges\n- Access TPM's hardware random number generator\n- Generate attestation data\n- Create cryptutil-compatible ID cards and keychains\n\n## Installation\n\n```bash\ngo get github.com/KarpelesLab/tpmlib\n```\n\n## Usage Examples\n\n### Basic Signing Operation\n\n```go\nimport (\n    \"crypto\"\n    \"crypto/rand\"\n    \"github.com/KarpelesLab/cryptutil\"\n    \"github.com/KarpelesLab/tpmlib\"\n)\n\nfunc signSomething(v []byte) ([]byte, error) {\n    k, err := tpmlib.GetKey()\n    if err != nil {\n        return nil, err\n    }\n    return k.Sign(rand.Reader, cryptutil.Hash(v, crypto.SHA256), crypto.SHA256)\n}\n```\n\n### ECDH Key Exchange\n\n```go\nimport (\n    \"crypto/ecdh\"\n    \"github.com/KarpelesLab/tpmlib\"\n)\n\nfunc performECDH(remotePubKey *ecdh.PublicKey) ([]byte, error) {\n    k, err := tpmlib.GetKey()\n    if err != nil {\n        return nil, err\n    }\n    \n    // Get shared secret\n    return k.ECDH(remotePubKey)\n}\n```\n\n### Hardware Random Number Generation\n\n```go\nimport \"github.com/KarpelesLab/tpmlib\"\n\nfunc getRandomBytes(size int) ([]byte, error) {\n    k, err := tpmlib.GetKey()\n    if err != nil {\n        return nil, err\n    }\n    \n    // Use TPM as a source of randomness\n    data := make([]byte, size)\n    _, err = k.Read(data)\n    if err != nil {\n        return nil, err\n    }\n    \n    return data, nil\n}\n```\n\n### Working with ID Cards\n\n```go\nimport \"github.com/KarpelesLab/tpmlib\"\n\nfunc getIDCard() (*cryptutil.IDCard, error) {\n    k, err := tpmlib.GetKey()\n    if err != nil {\n        return nil, err\n    }\n    \n    // Generate an unsigned ID card\n    return k.IDCard()\n}\n```\n\n## Platform Support\n\n- Linux: Uses `/dev/tpmrm0` then falls back to `/dev/tpm0`\n- Windows: Connects to the TPM using platform-specific mechanisms\n\n## Features\n\n- Thread-safe TPM access with proper locking\n- Singleton TPM connection to avoid resource conflicts\n- Support for NIST P-256 elliptic curve cryptography\n- Compatible with the KarpelesLab cryptutil ecosystem\n- Self-test functionality to verify TPM operations\n\n## Development\n\n```bash\n# Build the library\ngo build -v\n\n# Run tests\ngo test -v\n\n# Run a specific test\ngo test -v -run TestName\n```\n\n## License\n\nSee the [LICENSE](LICENSE) file for details.","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fkarpeleslab%2Ftpmlib","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fkarpeleslab%2Ftpmlib","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fkarpeleslab%2Ftpmlib/lists"}