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crates.io · #363 most downloaded on crates.io
PEM Encoding (RFC 7468) for PKIX, PKCS, and CMS Structures, implementing a strict subset of the original Privacy-Enhanced Mail encoding intended specifically for use with cryptographic keys, certificates, and other messages. Provides a no_std-friendly, constant-time implementation suitable for use with cryptographic private keys.
Last release 11 months ago
08 Nov 2025
Release timing varies
gaps range from 9 days to 10 months
Nearly every release is documented
notes for 13 of 13 stable releases
3 versions withdrawn
withdrawn after publishing
6 years old
23 releases · first in 2021
detect_base64_line_width and new_detect_wrap ([#1464])
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One column per quarter.
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[#802]: https://github.com/RustCrypto/formats/pull/802 [#824]: https://github.com/RustCrypto/formats/pull/824
encapsulated_len_wrapped ([#619])
Rename PemLabel::TYPE_LABEL => ::PEM_LABEL ([#568])
PemLabel::TYPE_LABEL => ::PEM_LABEL (#568)Clippy lints for checked arithmetic and panics ([#564])
Buffered Encoder type ([#463], [#474])
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Relax base64ct version requirement to ^1 ([#239])
base64ct version requirement to ^1 (#239)Rust 2021 edition upgrade; MSRV 1.56 ([#136])
Restrict base64ct dependency to <1.2 to prevent MSRV breakages
base64ct dependency to <1.2 to prevent MSRV breakages[#117]: https://github.com/RustCrypto/formats/pull/117
PemLabel trait (#117)Allow for data before PEM encapsulation boundary ([#40])
Support for customizing PEM line endings
Increase LF precedence in EOL stripping functions
decode_vec- Initial release
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