If you want to send me a secure email message, you can use PGP. I usually use the excellent GNU Privacy Guard, both on Windows and on Linux.
The following is my 2048-bit ELG-E public key:
-----BEGIN PGP PUBLIC KEY BLOCK----- Version: GnuPG v1.2.3 (MingW32) mQGiBD/HbZwRBAC2VjCYVxTtg2hgImUIZwZoqDLtzkDk5L47jQiaKyBR9OA7s9Qc 2OBQJCU2IxiJ6fOSXV7otv48mAInDwmoqVS1bHfI/T5B2Zw64Rm8i8XFoM25r1AD gjqjQ/YimZZkY/tt4z4DXLBJEJC3nV8X0QPYAUSR7p/+F2meoL2b7EiMuwCgrKhO JpLnTainKqe5Uv9NKzT83H8EAJr5VufWR3Oyt9pz8PzQpAlc+hTopPp1XLZw/7gI ScisWMVpXq3RVRNZ1jP4UDPVKM5MODpBHzD2avzI5vSZVKTrGkLijXccjPeYN8f9 fVbsdCB7uZf0SnvoPuPM5FYrpPi6NUyx0zEH034urV4MV0jxQDiL52WfRubd2yB5 DMMxBACClXL3zetkqlPNSnW/FAjFVu7tLuLfUoZ03r/dPGdtT7zRIR3fY7auBQsV GFENdmqjKH0JMwCSfIabdJSpQRempm5n3638mwW3jCHt9mDB2OnlsLcIK6gnmOfb mLXIt0WlrV6GKI/BQ1ThhB0OQdQTOHsypn+6010YA+NhcQOzFLQyTWFzc2ltbyBN YXJjaGlvcmkgKFczQy9NSVQvVU5JVkUpIDxtYXNzaW1vQHczLm9yZz6IXgQTEQIA HgUCP8dtnAIbAwYLCQgHAwIDFQIDAxYCAQIeAQIXgAAKCRCCb+n9IZVJeacaAJwM jx1AT6tjMI0NCpM+RP6PBuEGjQCfZG2EeWltg5bjQyW1dyBXk0DDD+O5Ag0EP8dt vxAIAP2fXEn/+sSCJTHH6ajQ/UJnzdpJQtriyd+iL7zRhB4Cb0TwWn85rmZqpi3h hEAX8XSzKcalvIfRmO/TXZE4Xu5uLNmCzLefbMn28gjx+Fwn1u3pO38GlGlm0AaQ 8W6f7Bc9xXyimR9PPKWYPTpI4nhrIRnw0Zbmx4/ic8LuyFoFPdn8HJAAAvwHfzdB R0etZR5MRiVUE1lXdoRe91tyon8QHdpcKKyCC/tiY0Sxx79Cw99Up7b9ei7Xgz4W +0RXcg3OgJIfqEPG3XbSNrn/ZhyoIydJISYa2BsfN/flMd3Vg+S1NV6BQYES2zjO cIQqjro29bg93V0usvp1cAHikjcAAwUIALMWxJfF45q3JrwNC6aMHWEUXSc2n+Wv lFamTzPBVIgPMTKycukRBmkQiJMv7LBEFdnh1CPZetXOW4O7Hu6pjBmMPQMdeXNN hcXQT/u5qZn4fnWMm7nwUvtrYvdYILOBojZfL9wbcPxmhHY6jErsMtwh5vKN3YSn NdmKD4tjhi98idqvwmO+iWvwG8lvYJHu92KIlxKgtC0Cl2yDUINlLbSvNlIGbi8T eITWYwKJs0Y+7uHFc0sUDML7yPdOzbaKjupqnG5/eYe3R7xhcdFnO1KttF2+93eq SbNi8jtziLvPwXdSB4wcQwmI4oeNYaN33M8WTFDyQuzqlk8vM3QSmGGISQQYEQIA CQUCP8dtvwIbDAAKCRCCb+n9IZVJeZ7iAJwLWJRjXRdhNQMyGOJSeabeRVrs2ACg g19WCtrqCi2uFo9qMh8Gj8KgFFI= =Y6K/ -----END PGP PUBLIC KEY BLOCK-----