Bump phpseclib/phpseclib from 3.0.36 to 3.0.51 in /libraries/google-api-php-client

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---

Bumps phpseclib/phpseclib from 3.0.36 to 3.0.51.

Release notes

Sourced from phpseclib/phpseclib's releases.

3.0.51

• SSH2: use constant time string comparison in get_binary_packet() (CVE-2026-40194)
• RSA: add sha3 support (#2132)
• use new OpenSSL functionality (#2130)

3.0.50

• fix for PHP 8.5 BC breaking changes on 32-bit machines (#2126)
• make unpadding in CBC mode constant time (CVE-2026-32935)
• X509: add support for organizationIdentifier (#2128)

3.0.49

• more PHP 8.5 deprecations (#2113)
• Keys/OpenSSH: add support for pub keys with multiple spaces / tabs (#2116)

3.0.48

• readd SCP support (#2108)
• SSH2: adjust want_reply handling for GLOBAL_REQUEST and CHANNEL_REQUEST (#2111)
• ASN1: add more validation checks to asn1map (#2104)
• RSA/PSS: more elegant int conversion (#2107)
• more PHP 8.5 deprecations (#2103, #2113)

3.0.47

• fix PHP 8.5 deprecations
• SFTP: check if realpath succeeded when changing SFTP directory (#2098)
• SFTP: add copy() method (only usable if copy-data ext is available) (#2101)

3.0.46

• BigInteger/BCMath: strict_types fix (#2089)

3.0.45

• BigInteger: modPow() calls with negative base gave incorrect result (#2086)
• BigInteger: barrett reduction returned '' vs '0' for bcmath engine (#2087)

3.0.44

• SSH2: add send_eof() method (#2062)
• SSH2: server identification string handling enhancements (#2082, #2083)
• SSH2: shore up terrapin counter measures
• SSH2: fix for packets sent between KEXINIT packets (#2084)
• SFTP: convert filenames to strings (#2065)
• Hash: add cmac_aes algorithm (#1967)
• ASN1: support tags with values >= 30 (#2066)
• PublicKeyLoader: improve handling of bad keys (#2077, #2079)
• RSA: fix for keys with negative modulos (#2085)
• BigInteger: adjust priority with which BCMath is used for PHP 8.4+

3.0.43

• fix PHP 8.4 deprecations
• BigInteger: workaround for regression in GMP that PHP introduced
• BigInteger: speed up Barrett reductions
• X509: make the attributes section of new CSRs be blank (#1522)

... (truncated)

Changelog

Sourced from phpseclib/phpseclib's changelog.

3.0.51 - 2026-04-09

• SSH2: use constant time string comparison in get_binary_packet()
• RSA: add sha3 support (#2132)
• use new OpenSSL functionality (#2130)

3.0.50 - 2026-03-18

• fix for PHP 8.5 BC breaking changes on 32-bit machines (#2126)
• make unpadding in CBC mode constant time (CVE-2026-32935)
• X509: add support for organizationIdentifier (#2128)

3.0.49 - 2026-01-27

• more PHP 8.5 deprecations (#2113)
• Keys/OpenSSH: add support for pub keys with multiple spaces / tabs (#2116)

3.0.48 - 2025-12-15

• readd SCP support (#2108)
• SSH2: adjust want_reply handling for GLOBAL_REQUEST and CHANNEL_REQUEST (#2111)
• ASN1: add more validation checks to asn1map (#2104)
• RSA/PSS: more elegant int conversion (#2107)
• more PHP 8.5 deprecations (#2103, #2113)

3.0.47 - 2025-10-05

• fix PHP 8.5 deprecations
• SFTP: check if realpath succeeded when changing SFTP directory (#2098)
• SFTP: add copy() method (only usable if copy-data ext is available) (#2101)

3.0.46 - 2025-06-29

• BigInteger/BCMath: strict_types fix (#2089)

3.0.45 - 2025-06-22

• BigInteger: modPow() calls with negative base gave incorrect result (#2086)
• BigInteger: barrett reduction returned '' vs '0' for bcmath engine (#2087)

3.0.44 - 2025-06-15

• SSH2: add send_eof() method (#2062)
• SSH2: server identification string handling enhancements (#2082, #2083)
• SSH2: shore up terrapin counter measures
• SSH2: fix for packets sent between KEXINIT packets (#2084)
• SFTP: convert filenames to strings (#2065)
• Hash: add cmac_aes algorithm (#1967)
• ASN1: support tags with values >= 30 (#2066)
• PublicKeyLoader: improve handling of bad keys (#2077, #2079)

... (truncated)

Commits

• d59c940 Merge branch '2.0' into 3.0
• 2d1a664 Merge branch '1.0' into 2.0
• 8e2adfd CHANGELOG: add new release
• 254140b Merge branch '2.0' into 3.0
• 3c7de67 Merge branch '1.0' into 2.0
• ffe48b6 SSH2: use constant time string comparison in get_binary_packet():
• 9e4813f Hash: fix for sha512-224 and sha512-256
• 9275a75 RSA: add support for sha3/224, sha3/256, sha3/384 and sha3/512
• 39465c1 CS adjustment
• ecd6bd4 EC: backport Curve25519/448 tweaks
• Additional commits viewable in compare view