Ok, I'm not sure which country you are flying into or out of, so I'm going to use US and Canada because I know this one. You need to look at the legal definitions of what you need to declare when they ask for currency and monetary instruments.
I have included definitions and links below, but neither the US or Canada under the current legal definitions would require the claim.
Even if they did, the worst they can do is seize your physical wallet, and since you should have a backup and you won't need to provide them the password you can just restore.
United States :
https://www.fincen.gov/sites/default/files/shared/fin105_cmir.pdf Currency: The coin and paper money of the United States or any other country that is (1) designated as legal tender and that (2) circulates and (3) is customarily accepted as a medium of exchange in the country of issuance.
Monetary Instruments— (1) Coin or currency of the United States or of any other country, (2) traveler’s checks in any form, (3) negotiable instruments (including checks, promissory notes, and money orders) in bearer form, endorsed without restriction, made out to a fictitious payee, or otherwise in such form that title thereto passes upon delivery, (4) incomplete instruments (including checks, promissory notes, and money orders) that are signed but on which the name of the payee has been omitted, and (5) securities or stock in bearer form or otherwise in such form that title thereto passes upon delivery. Monetary instruments do not include (i) checks or money orders made payable to the order of a named person which have not been endorsed or which bear restrictive endorsemenst, (ii) warehouse receipts, or (iii) bills of lading.
Canada :
http://www.cbsa-asfc.gc.ca/publications/forms-formulaires/e677-eng.html Definitions
"Currency"
means current coins and bank notes issued by the Bank of Canada and coins and banks notes in the currency of countries other than Canada.
"Monetary Instruments"
means (a) securities, including stocks, bonds, debentures and treasury bills, in bearer form or in such other form as title to them passes upon delivery; and (b) negotiable instruments in bearer form, including banker's drafts, cheques, traveller's cheques and money orders, other than
(i) warehouse receipts or bills of lading, and
(ii) negotiable instruments that bear restrictive endorsements or a stamp for the purposes of clearing or are made payable to a named person and have not been endorsed.
