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A comment on Apple enabling client-side CSAM scanning on iPhone tomorrow. Parent comment

Re:Apple enabling client-side CSAM scanning on iPhone tomorrow by _jal on Thursday August 05, 2021 @07:11AM (#28072135)
Not POTS, but cell phones could have been E2E at least since cellular switched to digital.
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Re:Apple enabling client-side CSAM scanning on iPhone tomorrow by gruez on Thursday August 05, 2021 @08:56AM (#28073038)
The first digital phones ran on 56 bit (symmetric?) encryption. They certainty weren't powerful enough to run public key cryptography at safe key sizes, which is needed for secure e2e.
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Re:Apple enabling client-side CSAM scanning on iPhone tomorrow by _jal on Friday August 06, 2021 @03:45PM (#28091915)
Not at key sizes considered safe today, but 384 bit RSA was considered secure for some uses around then.

The RSA-155 Challenge (512 bits) was not beaten until 1999.

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