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| author | Florian Dold <florian.dold@gmail.com> | 2018-09-24 12:13:53 +0200 |
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| committer | Florian Dold <florian.dold@gmail.com> | 2018-09-24 12:13:53 +0200 |
| commit | 3d1152a096c1ad192e9ab68660721e667eee1361 (patch) | |
| tree | 1c594f62b73dabb8a7eb9bb4846e0ed9c938fb4b /introduction.tex | |
| parent | 80ff6caa9e6f0d5a7b1a35972f145ace1f049625 (diff) | |
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| -rw-r--r-- | introduction.tex | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/introduction.tex b/introduction.tex index 5c4767f..dc444d9 100644 --- a/introduction.tex +++ b/introduction.tex @@ -493,7 +493,7 @@ bank. The bank draws a signature on the outside of the envelope, which presses through to the piece of paper with the serial number. In exchange for the signed envelope, the bank deducts a fixed amount (say five dollars) from the customer's bank account. Under the (admittedly rather strong) assumption that -the bank's signature can't be forged, the signed piece of paper with the serial +the bank's signature cannot be forged, the signed piece of paper with the serial number is now an untraceable bank note worth five dollars, as the bank signed it without seeing the serial number inside the envelope! Since the signed paper can be easily copied, merchants that accept it as payment must check the |