The Olm library implements the Double Ratchet cryptographic ratchet. It is written in C and C++11, and exposed as a C API.

This module is intended to provide a cryptographically-secure replacement for Perl's built-in rand function. "Cryptographically secure", in this case, means:

1. No matter how many numbers you see generated by the random number generator, you cannot guess the future numbers, and you cannot guess the seed.

2. There are so many possible seeds that it would take decades, centuries, or millennia for an attacker to try them all.

3. The seed comes from a source that generates relatively strong random data on your platform, so the seed itself will be as random as possible.

ISAAC (Indirection, Shift, Accumulate, Add, and Count) is a fast pseudo-random number generator. It is suitable for applications where a significant amount of random data needs to be produced quickly, such as solving using the Monte Carlo method or for games. The results are uniformly distributed, unbiased, and unpredictable unless you know the seed.

This package provides a Perl interface to the ISAAC pseudo random number generator.

ccrypt is a utility for encrypting and decrypting files and streams. It was designed as a replacement for the standard unix crypt utility, which is notorious for using a very weak encryption algorithm. ccrypt is based on the Rijndael block cipher, a version of which is also used in the Advanced Encryption Standard (AES, see http://www.nist.gov/aes). This cipher is believed to provide very strong security.

Asignify offers public cryptographic signatures and encryption with a library or a command-line tool. The tool is heavily inspired by signify as used in OpenBSD. The main goal of this project is to define a high level API for signing files, validating signatures and encrypting using public-key cryptography. Asignify is designed to be portable and self-contained with zero external dependencies. Asignify can verify OpenBSD signatures, but it cannot sign messages in OpenBSD format yet.

BLAKE2 is a cryptographic hash function faster than MD5, SHA-1, SHA-2, and SHA-3, yet is at least as secure as SHA-3.

DigiDoc is an XML file format for documents with digital signatures used by the Estonian ID card infrastructure. This library allows for creation and reading of DigiDoc files.

The Olm library implements the Double Ratchet cryptographic ratchet. This package contains its Python bindings.

This package provides b3sum, a command line checksum tool based on the BLAKE3 cryptographic hash function.

libscrypt implements scrypt key derivation function. It is designed to be far more secure against hardware brute-force attacks than alternative functions such as PBKDF2 or bcrypt.

ISAAC (Indirection, Shift, Accumulate, Add, and Count) is a fast pseudo-random number generator. It is suitable for applications where a significant amount of random data needs to be produced quickly, such as solving using the Monte Carlo method or for games. The results are uniformly distributed, unbiased, and unpredictable unless you know the seed.

This package implements the same interface as Math::Random::ISAAC.

The signify utility creates and verifies cryptographic signatures using the elliptic curve Ed25519. This is a Linux port of the OpenBSD tool of the same name.

Cryptsetup is a utility used to conveniently set up disk encryption based on the dm-crypt Linux kernel module. It is most often used to manage LUKS volumes but also supports plain dm-crypt volumes and loop-AES, TrueCrypt (including VeraCrypt extension), and BitLocker formats.

LUKS is the standard for hard disk encryption with the kernel Linux. It provides a standard on-disk-format compatible amongst distributions as well as secure management of multiple user passwords. LUKS stores all necessary setup information in the partition header to facilitate data transport and migration.

The package also includes the veritysetup and integritysetup utilities to conveniently configure the dm-verity and dm-integrity block integrity kernel modules.

Cryptsetup is a utility used to conveniently set up disk encryption based on the dm-crypt Linux kernel module. It is most often used to manage LUKS volumes but also supports plain dm-crypt volumes and loop-AES, TrueCrypt (including VeraCrypt extension), and BitLocker formats.

LUKS is the standard for hard disk encryption with the kernel Linux. It provides a standard on-disk-format compatible amongst distributions as well as secure management of multiple user passwords. LUKS stores all necessary setup information in the partition header to facilitate data transport and migration.

The package also includes the veritysetup and integritysetup utilities to conveniently configure the dm-verity and dm-integrity block integrity kernel modules.

Cryptsetup is a utility used to conveniently set up disk encryption based on the dm-crypt Linux kernel module. It is most often used to manage LUKS volumes but also supports plain dm-crypt volumes and loop-AES, TrueCrypt (including VeraCrypt extension), and BitLocker formats.

LUKS is the standard for hard disk encryption with the kernel Linux. It provides a standard on-disk-format compatible amongst distributions as well as secure management of multiple user passwords. LUKS stores all necessary setup information in the partition header to facilitate data transport and migration.

The package also includes the veritysetup and integritysetup utilities to conveniently configure the dm-verity and dm-integrity block integrity kernel modules.

Contains backends, filters, and other software that was once part of the core CUPS distribution but is no longer maintained by Apple Inc. In addition it contains additional filters developed independently of Apple, especially filters for the PDF-centric printing workflow introduced by OpenPrinting.

Hewlett-Packard printer drivers and PostScript Printer Descriptions (PPDs).

foo2zjs is a printer driver for printers that use the Zenographics ZjStream wire protocol for their print data, often erroneously referred to as winprinters or GDI printers.

It supports Minolta/QMS Magicolor, Minolta Color PageWorks/Pro, HP LaserJet, and possibly other printers. See README for details.

SpliX is a set of CUPS drivers for printers that speak QPDL, also called SPL2. These include many laser printers sold by Samsung, Xerox, Lexmark, Toshiba, and Dell.

Colour printers need colour profile files to get better results. These cms files are provided by the printer's manufacturer and must be obtained and installed separately.

This package provides Python bindings for libcups, wrapping the CUPS API.

This package provides the org.opensuse.CupsPkHelper.Mechanism DBus system service which uses cups-pk-helper-mechanism. This package should only be used as part of the Guix cups-pk-helper service.

CUPS is a printing system that uses IPP to talk to printers and network clients. It also provides the old lp and lpr commands, a Web interface, and a C programming interface to manage printers and print jobs.

CUPS can print to both local (USB, serial, even parallel) and networked printers. Almost any modern printer supports IPP Everywhere, sometimes sold as AirPrint, and is supported out of the box. Older printers can be supported through legacy PPD-based printer drivers called ``printer applications''. These must be installed separately.

CUPS is a printing system that uses IPP to talk to printers and network clients. It also provides the old lp and lpr commands, a Web interface, and a C programming interface to manage printers and print jobs.

CUPS can print to both local (USB, serial, even parallel) and networked printers. Almost any modern printer supports IPP Everywhere, sometimes sold as AirPrint, and is supported out of the box. Older printers can be supported through legacy PPD-based printer drivers called ``printer applications''. These must be installed separately.

Brlaser is a CUPS driver for Brother laser printers. This driver is known to work with these printers:

1. Brother DCP-1510 series

2. Brother DCP-1600 series

3. Brother DCP-1610W series

4. Brother DCP-7010

5. Brother DCP-7020

6. Brother DCP-7030

7. Brother DCP-7040

8. Brother DCP-7055

9. Brother DCP-7055W

10. Brother DCP-7060D

11. Brother DCP-7065DN

12. Brother DCP-7070DW

13. Brother DCP-7080

14. Brother DCP-7080D

15. Brother DCP-8065DN

16. Brother DCP-B7500D series

17. Brother DCP-L2500D series

18. Brother DCP-L2510D series

19. Brother DCP-L2520D series

20. Brother DCP-L2520DW series

21. Brother DCP-L2537DW

22. Brother DCP-L2540DW series

23. Brother DCP-L2550DW series

24. Brother DCP-L2560DW series

25. Brother FAX-2820

26. Brother FAX-2840

27. Brother HL-1110 series

28. Brother HL-1200 series

29. Brother HL-2030 series

30. Brother HL-2130 series

31. Brother HL-2140 series

32. Brother HL-2220 series

33. Brother HL-2230 series

34. Brother HL-2240 series

35. Brother HL-2240D series

36. Brother HL-2250DN series

37. Brother HL-2260

38. Brother HL-2260D

39. Brother HL-2270DW series

40. Brother HL-2280DW

41. Brother HL-5030 series

42. Brother HL-5040 series

43. Brother HL-5140 series

44. Brother HL-5370DW series

45. Brother HL-5450DN series

46. Brother HL-L2300D series

47. Brother HL-L2305 series

48. Brother HL-L2310D series

49. Brother HL-L2320D series

50. Brother HL-L2335D series

51. Brother HL-L2340D series

52. Brother HL-L2350DW series

53. Brother HL-L2360D series

54. Brother HL-L2370DN series

55. Brother HL-L2375DW series

56. Brother HL-L2380DW series

57. Brother HL-L2390DW

58. Brother HL-L2400DW

59. Brother HL-L2402D

60. Brother HL-L2405W

61. Brother HL-L5000D series

62. Brother MFC-1810 series

63. Brother MFC-1910W series

64. Brother MFC-7240

65. Brother MFC-7320

66. Brother MFC-7340

67. Brother MFC-7360N

68. Brother MFC-7365DN

69. Brother MFC-7420

70. Brother MFC-7440N

71. Brother MFC-7460DN

72. Brother MFC-7860DW

73. Brother MFC-8440

74. Brother MFC-8710DW

75. Brother MFC-8860DN

76. Brother MFC-9160

77. Brother MFC-L2690DW

78. Brother MFC-L2700DN series

79. Brother MFC-L2700DW series

80. Brother MFC-L2710DN series

81. Brother MFC-L2710DW series

82. Brother MFC-L2750DW series

83. Fuji Xerox DocuPrint P265 dw

84. Lenovo LJ2650DN