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AEGIS is a new family of authenticated encryption algorithms that offers
stronger security, higher usage limits, and better performance than AES-GCM.
This pull request adds support for a new `-aegis` command-line flag, allowing
AEGIS-128X2 to be used as an alternative to AES-GCM on CPUs with AES acceleration.
It also introduces the ability to use ciphers with different key sizes.
More information on AEGIS is available here:
- https://cfrg.github.io/draft-irtf-cfrg-aegis-aead/draft-irtf-cfrg-aegis-aead.html
- https://github.com/cfrg/draft-irtf-cfrg-aegis-aead
gocryptfs -speed speed on Apple M1:
AES-GCM-256-OpenSSL 3718.79 MB/s
AES-GCM-256-Go 5083.43 MB/s (selected in auto mode)
AES-SIV-512-Go 625.20 MB/s
XChaCha20-Poly1305-OpenSSL 1358.63 MB/s (selected in auto mode)
XChaCha20-Poly1305-Go 832.11 MB/s
Aegis128X2-Go 11818.73 MB/s
gocryptfs -speed speed on AMD Zen 4:
AES-GCM-256-OpenSSL 5215.86 MB/s
AES-GCM-256-Go 6918.01 MB/s (selected in auto mode)
AES-SIV-512-Go 449.61 MB/s
XChaCha20-Poly1305-OpenSSL 2643.48 MB/s
XChaCha20-Poly1305-Go 3727.46 MB/s (selected in auto mode)
Aegis128X2-Go 28109.92 MB/s
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We redirected the wrong ldd fd to /dev/null. Fix it.
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Causes warnings:
$ ./build-without-openssl.bash
# github.com/rfjakob/gocryptfs
loadinternal: cannot find runtime/cgo
# github.com/rfjakob/gocryptfs/gocryptfs-xray
loadinternal: cannot find runtime/cgo
# github.com/rfjakob/gocryptfs/contrib/statfs
loadinternal: cannot find runtime/cgo
gocryptfs v1.7.1-48-gf6b1c68 without_openssl; go-fuse v1.0.1-0.20190319092520-161a16484456; 2020-04-18 go1.13.6 linux/amd64
https://github.com/golang/go/issues/30986
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Creates a tar.gz with a static build of gocryptfs and the man page.
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$ ldd gocryptfs
not a dynamic executable
$ file gocryptfs
gocryptfs: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), statically linked, not stripped
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Build helper script: build-without-openssl.bash
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