/decrypt_gpg_armor_private_key.go
Created Jan 8, 2014
Decrypting an ASCII armored GPG encrypted string using a private key (no passphrase) in ASCII armor format
| package main | |
| import ( | |
| "bytes" | |
| "code.google.com/p/go.crypto/openpgp" | |
| "code.google.com/p/go.crypto/openpgp/armor" | |
| "fmt" | |
| "io/ioutil" | |
| "log" | |
| ) | |
| func main() { | |
| // Read armored private key into type EntityList | |
| // An EntityList contains one or more Entities. | |
| // This assumes there is only one Entity involved | |
| entitylist, err := openpgp.ReadArmoredKeyRing(bytes.NewBufferString(privateKey)) | |
| if err != nil { | |
| log.Fatal(err) | |
| } | |
| entity := entitylist[0] | |
| fmt.Println("Private key from armored string:", entity.Identities) | |
| // Decrypt armor encrypted message using private key | |
| decbuf := bytes.NewBuffer([]byte(encryptedMessage)) | |
| result, err := armor.Decode(decbuf) | |
| if err != nil { | |
| log.Fatal(err) | |
| } | |
| md, err := openpgp.ReadMessage(result.Body, entitylist, nil, nil) | |
| if err != nil { | |
| fmt.Println("error reading message", err) | |
| } | |
| bytes, err := ioutil.ReadAll(md.UnverifiedBody) | |
| fmt.Println("md:", string(bytes)) | |
| } | |
| // sec 1024R/1D489768 2014-01-08 | |
| // uid Golang Test (Private key has no password) <golangtest@test.com> | |
| // ssb 1024R/A46346C7 2014-01-08 | |
| const privateKey = `-----BEGIN PGP PRIVATE KEY BLOCK----- | |
| Version: GnuPG v1 | |
| lQHYBFLMpyYBBACaEwtBnjtwzygaZadrx2ar2NiYc9FtsWtX0tHIA58UjtrrFVgr | |
| SVhxIfFzsk2uIB/aTdZVtEgCJPw4NSwgSjQmzPGf5I47Q+pDWfcJSpiXYZfHSa+K | |
| MV5Pmckw/IY6L0VGjgP/sPI8nPXG3WdQZBoXY0iR0r5I4cdMPGD3RDHlmwARAQAB | |
| AAP8DcSy5k++DxQsCMPZxLtidOvhWypKZkuLBKOdxIpyTlN/w686HFAnG6EFYynl | |
| YDCVuBvpkeoU30Av29QAl/gZldSNRGFVxUSox0W+OIZELICc+j2pWyD5fnv3Ezs1 | |
| TNIjtFsiQGtyWZ1QFQsTSLIVtT8UZWxbvDrJw46ndJlGo7UCAML6BkGkh5sqjHEv | |
| 9HS61t+QxI8+9OrphEFKtYYzpRHGxcZAWNue7q3czuXXNpP3emRHHjJ9ooUkBlS1 | |
| /X6KlZ0CAMpL1huNPwQ25geusz+pqEHLFnVOCbAf+QbQvWlRHeo3/t//eCl1naLK | |
| GK29nXrKoM7wHqN1XOF6q9heOl5UXpcB/1E0jwJ+myuqUzGjWeWW51heh9iiQeBv | |
| nHxqq7VHoXDE/TmNyc2/ByUBuYvuJCKN5Uge0u+2sa9UBHdKQiCARvSghLQ/R29s | |
| YW5nIFRlc3QgKFByaXZhdGUga2V5IGhhcyBubyBwYXNzd29yZCkgPGdvbGFuZ3Rl | |
| c3RAdGVzdC5jb20+iLgEEwECACIFAlLMpyYCGwMGCwkIBwMCBhUIAgkKCwQWAgMB | |
| Ah4BAheAAAoJEMRDjVMdSJdoo3EEAJXzk+gvNTL3mADd2MhoYxI6V3S5x2yWQlum | |
| o1afl4J9u+pyLZgSifX4OO23EFnfrRYivR4AGbmYqUZ/Gi0J0KBmpZpY5IULKf2v | |
| V7RH49QFmp1twNTC3JG3ovOIID5aZlHKKfSHCz7xt9jngHbqjnSEX/BHR0K1RsC9 | |
| yOUc2qjinQHYBFLMpyYBBADaEokbf4iYagyagJTAwJSflmu2ihfslHOwVSjr+SOV | |
| 573kMQ03N9U9kESLm9CCC+b1G4vgBxuWBmvy5O0TR2R0Z9PYyr+81/Rr2xitq/yB | |
| kf+b8WuhdXXc4mGm/V2WiP4zAT8ibtydn+NFITi8SNvGAZRasjRObzdoiJSAwE6A | |
| 6wARAQABAAP8C4iiJoBi7uMGuTIUNSnspLUDeY2XN+lDipRXnoUmAuQMOf2t4J37 | |
| /6CjGb7mnA/rzm8RnOXFoGIOIyHXN9l1cGA2LzzRKoNcSO5sk8c5WSbpsKQewFEM | |
| cLMmC1KsTXAIjhdg54MgcKzBWySoCe/2mxlyHq++/YKew+ZgzBOTFkkCAN4ybSJG | |
| 9I0x5UvwRzLtKz3IPTaagdhZ8EHWDzvI9WS5vwENDFYnFmSQnjYEPLvntJCmpdku | |
| d+TKWlEqEG6ASEkCAPs/ecZlUskW26GD/4hYEAvkOGLg4BH/oTgVqbwMRzlLtUn2 | |
| StPHXlfodc3ClaeIc0kivwivBHiLCML7v4NTB5MCAImcKRUrPGE8ZUM+C0WzTGTd | |
| BJIeM9yRtF+H+MkmAnKJsFbDJx145C0KxANVpagEu7sz7txysWgkd7Mt3mPkKgWX | |
| WoifBBgBAgAJBQJSzKcmAhsMAAoJEMRDjVMdSJdofBQD+gKh9E+kbugDIAejjE0I | |
| 1woNp/08ib4nRd7ZshEdykOZuvUEr7L7F6of197/x7IiL3pd+b/GTuv4h5N9rT92 | |
| U+ue0CwwhmmxYzu6Jkzet2fvmOdGFrKglnVBsreJkLXyDxAOHmFhulg7ABHVr3Vo | |
| ybM0WVIalA8ZbghCuGrhSb0T | |
| =HP3h | |
| -----END PGP PRIVATE KEY BLOCK----- | |
| ` | |
| // Encrypted by public key message for | |
| // 1024R/A46346C7 2014-01-08 "Golang Test (Private key has no password) <golangtest@test.com>" | |
| const encryptedMessage = `-----BEGIN PGP MESSAGE----- | |
| Version: GnuPG v1 | |
| hIwDa78K16RjRscBA/9rEXnQ06mAOwrhTXwkps0cYhOBc/dX7BtdEPoRLBd0zNpr | |
| hlU2YPcmQjBaL2Zi2E64K9Ud+R3D4RHt78a1145jjPFBMpWg1z2SMgERaRtwT2++ | |
| AinkXavDTuwoyPD7X3z4Jyp+aPcvReUQhq7idb2Kl5cjnXe1Z31a9wy4wMHEItJh | |
| ARDEtteoYHsszGqTdIQOuGrI5P/V4biteh5JpxWqeTWDiY9HR2O31kwRhh9bV3J/ | |
| 0kFgWpTRqfaSmu8ZiHtfQzTGCHpbLhz2IQgOSjBevzZACbn0z7h5Ro+EfAsonGfH | |
| 3w== | |
| =xUUr | |
| -----END PGP MESSAGE-----` |
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